668 lines
9.7 KiB
C
Executable File
668 lines
9.7 KiB
C
Executable File
/*
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* xpmr_coef.h - for Xelatec Private Mobile Radio Processes
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*
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* All Rights Reserved. Copyright (C)2007, Xelatec, LLC
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*
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* 20070808 1235 Steven Henke, W9SH, sph@xelatec.com
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* This version may be optionally licenced under the GNU LGPL licence.
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*
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* A license has been granted to Digium (via disclaimer) for the use of
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* this code.
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*
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* Some filter coeficients via 'WinFilter' http://www.winfilter.20m.com.
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*
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*/
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/*! \file
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*
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* \brief Private Land Mobile Radio Channel Voice and Signaling Processor
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*
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* \author Steven Henke, W9SH <sph@xelatec.com> Xelatec, LLC
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*/
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#ifndef XPMR_COEF_H
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#define XMPR_COEF_H 1
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// frequencies in 0.1 Hz
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static const u32 dtmf_row[] =
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{
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6970, 7700, 8520, 9410
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};
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static const u32 dtmf_col[] =
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{
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12090, 13360, 14770, 16330
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};
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#define CTCSS_COEF_INT 120
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#define CTCSS_SAMPLE_RATE 8000
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#define TDIV(x) ((CTCSS_SAMPLE_RATE*1000/x)+5)/10
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#if 0
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static i32 coef_ctcss[4][5]=
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{
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// freq, divisor, integrator, filter
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{770,TDIV(770),CTCSS_COEF_INT,0,0},
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{1000,TDIV(1000),CTCSS_COEF_INT,0,0},
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{1035,TDIV(1035),CTCSS_COEF_INT,0,0},
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{0,0,0,0}
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};
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#endif
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static i16 coef_ctcss_div[]=
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{
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2985, // 00 067.0
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2782, // 01 071.9
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2688, // 02 074.4
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2597, // 03 077.0
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2509, // 04 079.7
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2424, // 05 082.5
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2342, // 06 085.4
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2260, // 07 088.5
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2186, // 08 091.5
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2110, // 09 094.8
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2053, // 10 097.4
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2000, // 11 100.0
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1932, // 12 103.5
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1866, // 13 107.2
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1803, // 14 110.9
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1742, // 15 114.8
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1684, // 16 118.8
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1626, // 17 123.0
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1571, // 18 127.3
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1517, // 19 131.8
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1465, // 20 136.5
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1415, // 21 141.3
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1368, // 22 146.2
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1321, // 23 151.4
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1276, // 24 156.7
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1233, // 25 162.2
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1191, // 26 167.9
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1151, // 27 173.8
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1112, // 28 179.9
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1074, // 29 186.2
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1037, // 30 192.8
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983, // 31 203.5
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949, // 32 210.7
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917, // 33 218.1
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886, // 34 225.7
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856, // 35 233.6
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827, // 36 241.8
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799 // 37 250.3
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};
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static float freq_ctcss[]=
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{
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067.0, // 00
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071.9, // 01
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074.4, // 02
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077.0, // 03
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079.7, // 04
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082.5, // 05
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085.4, // 06
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088.5, // 07
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091.5, // 08
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094.8, // 09
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097.4, // 10
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100.0, // 11
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103.5, // 12
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107.2, // 13
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110.9, // 14
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114.8, // 15
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118.8, // 16
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123.0, // 17
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127.3, // 18
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131.8, // 19
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136.5, // 20
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141.3, // 21
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146.2, // 22
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151.4, // 23
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156.7, // 24
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162.2, // 25
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167.9, // 26
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173.8, // 27
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179.9, // 28
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186.2, // 29
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192.8, // 30
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203.5, // 31
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210.7 , // 32
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218.1 , // 33
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225.7 , // 34
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233.6 , // 35
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241.8 , // 36
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250.3 // 37
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};
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/*
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noise squelch carrier detect filter
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*/
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static const int16_t taps_fir_bpf_noise_1 = 66;
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static const int32_t gain_fir_bpf_noise_1 = 65536;
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static const int16_t coef_fir_bpf_noise_1[] = {
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139,
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-182,
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-269,
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-66,
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56,
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59,
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250,
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395,
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-80,
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-775,
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-557,
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437,
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779,
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210,
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-17,
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123,
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-692,
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-1664,
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-256,
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2495,
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2237,
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-1018,
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-2133,
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-478,
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-1134,
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-2711,
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2642,
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10453,
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4010,
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-14385,
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-16488,
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6954,
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23030,
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6954,
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-16488,
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-14385,
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4010,
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10453,
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2642,
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-2711,
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-1134,
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-478,
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-2133,
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-1018,
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2237,
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2495,
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-256,
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-1664,
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-692,
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123,
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-17,
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210,
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779,
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437,
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-557,
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-775,
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-80,
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395,
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250,
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59,
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56,
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-66,
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-269,
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-182,
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139,
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257
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};
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/*
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tbd
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*/
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static const int16_t taps_fir_lpf_3K_1 = 66;
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static const int32_t gain_fir_lpf_3K_1 = 131072;
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static const int16_t coef_fir_lpf_3K_1[] = {
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259,
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58,
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-185,
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-437,
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-654,
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-793,
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-815,
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-696,
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-434,
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-48,
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414,
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886,
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1284,
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1523,
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1529,
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1254,
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691,
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-117,
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-1078,
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-2049,
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-2854,
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-3303,
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-3220,
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-2472,
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-995,
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1187,
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3952,
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7086,
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10300,
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13270,
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15672,
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17236,
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17778,
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17236,
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15672,
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13270,
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10300,
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7086,
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3952,
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1187,
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-995,
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-2472,
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-3220,
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-3303,
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-2854,
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-2049,
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-1078,
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-117,
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691,
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1254,
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1529,
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1523,
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1284,
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886,
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414,
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-48,
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-434,
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-696,
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-815,
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-793,
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-654,
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-437,
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-185,
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58,
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259,
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393
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};
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/**************************************************************
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Filter type: Low Pass
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Filter model: Butterworth
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Filter order: 9
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Sampling Frequency: 8 KHz
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Cut Frequency: 0.250000 KHz
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Coefficents Quantization: 16-bit
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***************************************************************/
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static const int16_t taps_fir_lpf_250_11_64 = 64;
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static const int32_t gain_fir_lpf_250_11_64 = 262144;
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static const int16_t coef_fir_lpf_250_11_64[] =
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{
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366,
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-3,
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-418,
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-865,
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-1328,
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-1788,
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-2223,
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-2609,
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-2922,
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-3138,
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-3232,
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-3181,
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-2967,
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-2573,
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-1988,
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-1206,
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-228,
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937,
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2277,
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3767,
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5379,
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7077,
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8821,
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10564,
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12259,
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13855,
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15305,
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16563,
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17588,
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18346,
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18812,
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18968,
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18812,
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18346,
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17588,
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16563,
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15305,
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13855,
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12259,
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10564,
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8821,
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7077,
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5379,
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3767,
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2277,
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937,
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-228,
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-1206,
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-1988,
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-2573,
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-2967,
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-3181,
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-3232,
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-3138,
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-2922,
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-2609,
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-2223,
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-1788,
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-1328,
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-865,
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-418,
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-3,
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366,
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680
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};
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// de-emphasis integrator 300 Hz with 8KS/s
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// a0, b1
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static const int16_t taps_int_lpf_300_1_2 = 2;
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static const int32_t gain_int_lpf_300_1_2 = 8182;
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static const int16_t coef_int_lpf_300_1_2[]={
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6878,
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25889
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};
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// pre-emphasis differentiator 4000 Hz with 8KS/s
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// a0,a1,b0,
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static const int16_t taps_int_hpf_4000_1_2 = 2;
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//static const int32_t gain_int_hpf_4000_1_2 = 16384; // per calculations
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static const int32_t gain_int_hpf_4000_1_2 = 13404; // hand tweaked for unity gain at 1KHz
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static const int16_t coef_int_hpf_4000_1_2[]={
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17610,
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-17610,
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2454
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};
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/*
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ctcss decode filter
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*/
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/**************************************************************
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Filter type: Low Pass
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Filter model: Butterworth
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Filter order: 9
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Sampling Frequency: 8 KHz
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Cut Frequency: 0.250000 KHz
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Coefficents Quantization: 16-bit
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***************************************************************/
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static const int16_t taps_fir_lpf_250_9_66 = 66;
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static const int32_t gain_fir_lpf_250_9_66 = 262144;
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static const int16_t coef_fir_lpf_250_9_66[] =
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{
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676,
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364,
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-3,
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-415,
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-860,
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-1320,
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-1777,
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-2209,
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-2593,
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-2904,
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-3119,
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-3212,
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-3162,
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-2949,
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-2557,
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-1975,
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-1198,
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-226,
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932,
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2263,
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3744,
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5346,
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7034,
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8767,
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10499,
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12184,
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13770,
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15211,
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16462,
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17480,
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18234,
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18696,
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18852,
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18696,
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18234,
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17480,
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16462,
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15211,
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13770,
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12184,
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10499,
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8767,
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7034,
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5346,
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|
3744,
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|
2263,
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|
932,
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-226,
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-1198,
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-1975,
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-2557,
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-2949,
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-3162,
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-3212,
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-3119,
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-2904,
|
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-2593,
|
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-2209,
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-1777,
|
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-1320,
|
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-860,
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-415,
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-3,
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364,
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676,
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927
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};
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/* *************************************************************
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Filter type: Low Pass
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Filter model: Butterworth
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Filter order: 9
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Sampling Frequency: 8 KHz
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Cut Frequency: 0.215 KHz
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Coefficents Quantization: 16-bit
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***************************************************************/
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static const int16_t taps_fir_lpf_215_9_88 = 88;
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static const int32_t gain_fir_lpf_215_9_88 = 524288;
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static const int16_t coef_fir_lpf_215_9_88[] = {
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2038,
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2049,
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1991,
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1859,
|
|
1650,
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1363,
|
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999,
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562,
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58,
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-502,
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|
-1106,
|
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-1739,
|
|
-2382,
|
|
-3014,
|
|
-3612,
|
|
-4153,
|
|
-4610,
|
|
-4959,
|
|
-5172,
|
|
-5226,
|
|
-5098,
|
|
-4769,
|
|
-4222,
|
|
-3444,
|
|
-2430,
|
|
-1176,
|
|
310,
|
|
2021,
|
|
3937,
|
|
6035,
|
|
8284,
|
|
10648,
|
|
13086,
|
|
15550,
|
|
17993,
|
|
20363,
|
|
22608,
|
|
24677,
|
|
26522,
|
|
28099,
|
|
29369,
|
|
30299,
|
|
30867,
|
|
31058,
|
|
30867,
|
|
30299,
|
|
29369,
|
|
28099,
|
|
26522,
|
|
24677,
|
|
22608,
|
|
20363,
|
|
17993,
|
|
15550,
|
|
13086,
|
|
10648,
|
|
8284,
|
|
6035,
|
|
3937,
|
|
2021,
|
|
310,
|
|
-1176,
|
|
-2430,
|
|
-3444,
|
|
-4222,
|
|
-4769,
|
|
-5098,
|
|
-5226,
|
|
-5172,
|
|
-4959,
|
|
-4610,
|
|
-4153,
|
|
-3612,
|
|
-3014,
|
|
-2382,
|
|
-1739,
|
|
-1106,
|
|
-502,
|
|
58,
|
|
562,
|
|
999,
|
|
1363,
|
|
1650,
|
|
1859,
|
|
1991,
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|
2049,
|
|
2038,
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|
1966
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};
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// end coef fir_lpf_215_9_88
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//
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/**************************************************************
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Filter type: High Pass
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Filter model: Butterworth
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Filter order: 9
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Sampling Frequency: 8 KHz
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Cut Frequency: 0.300000 KHz
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Coefficents Quantization: 16-bit
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***************************************************************/
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static const int16_t taps_fir_hpf_300_9_66 = 66;
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static const int32_t gain_fir_hpf_300_9_66 = 32768;
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static const int16_t coef_fir_hpf_300_9_66[] =
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{
|
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-141,
|
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-114,
|
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-77,
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|
-30,
|
|
23,
|
|
83,
|
|
147,
|
|
210,
|
|
271,
|
|
324,
|
|
367,
|
|
396,
|
|
407,
|
|
396,
|
|
362,
|
|
302,
|
|
216,
|
|
102,
|
|
-36,
|
|
-199,
|
|
-383,
|
|
-585,
|
|
-798,
|
|
-1017,
|
|
-1237,
|
|
-1452,
|
|
-1653,
|
|
-1836,
|
|
-1995,
|
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-2124,
|
|
-2219,
|
|
-2278,
|
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30463,
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-2278,
|
|
-2219,
|
|
-2124,
|
|
-1995,
|
|
-1836,
|
|
-1653,
|
|
-1452,
|
|
-1237,
|
|
-1017,
|
|
-798,
|
|
-585,
|
|
-383,
|
|
-199,
|
|
-36,
|
|
102,
|
|
216,
|
|
302,
|
|
362,
|
|
396,
|
|
407,
|
|
396,
|
|
367,
|
|
324,
|
|
271,
|
|
210,
|
|
147,
|
|
83,
|
|
23,
|
|
-30,
|
|
-77,
|
|
-114,
|
|
-141,
|
|
-158
|
|
};
|
|
#endif /* !XPMR_COEF_H */
|
|
/* end of file */
|
|
|
|
|
|
|
|
|