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Implemented dummy burst filter. Issue #100

This commit is contained in:
Roman Khassraf 2015-08-04 12:26:54 +02:00
parent 8e3b0eca89
commit 7cccb52ef3
11 changed files with 344 additions and 2 deletions
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3
grc/flow_control/CMakeLists.txt
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@ -19,5 +19,6 @@
install(FILES
gsm_burst_timeslot_splitter.xml
gsm_burst_fnr_filter.xml DESTINATION share/gnuradio/grc/blocks
gsm_burst_fnr_filter.xml
gsm_dummy_burst_filter.xml DESTINATION share/gnuradio/grc/blocks
)

24
grc/flow_control/gsm_dummy_burst_filter.xml Normal file
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@ -0,0 +1,24 @@
<?xml version="1.0"?>
<block>
<name>Dummy burst filter</name>
<key>gsm_dummy_burst_filter</key>
<import>import grgsm</import>
<make>grgsm.dummy_burst_filter()</make>
<sink>
<name>in</name>
<type>message</type>
</sink>
<source>
<name>out</name>
<type>message</type>
<optional>1</optional>
</source>
<doc>
This block filters dummy bursts.
For more information on dummy bursts, see GSM 05.02.
</doc>
</block>

1
grc/gsm_block_tree.xml
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@ -41,6 +41,7 @@
<name>Flow control</name>
<block>gsm_burst_timeslot_splitter</block>
<block>gsm_burst_fnr_filter</block>
<block>gsm_dummy_burst_filter</block>
</cat>
<cat>
<name>Utilities</name>

3
include/grgsm/flow_control/CMakeLists.txt
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@ -22,5 +22,6 @@
########################################################################
install(FILES
burst_timeslot_splitter.h
burst_fnr_filter.h DESTINATION include/grgsm/flow_control
burst_fnr_filter.h
dummy_burst_filter.h DESTINATION include/grgsm/flow_control
)

55
include/grgsm/flow_control/dummy_burst_filter.h Normal file
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@ -0,0 +1,55 @@
/* -*- c++ -*- */
/* @file
* @author Roman Khassraf <rkhassraf@gmail.com>
* @section LICENSE
*
* Gr-gsm is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* Gr-gsm is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with gr-gsm; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef INCLUDED_GSM_DUMMY_BURST_FILTER_H
#define INCLUDED_GSM_DUMMY_BURST_FILTER_H
#include <grgsm/api.h>
#include <gnuradio/block.h>
namespace gr {
namespace gsm {
/*!
* \brief <+description of block+>
* \ingroup gsm
*
*/
class GSM_API dummy_burst_filter : virtual public gr::block
{
public:
typedef boost::shared_ptr<dummy_burst_filter> sptr;
/*!
* \brief Return a shared_ptr to a new instance of grgsm::dummy_burst_filter.
*
* To avoid accidental use of raw pointers, grgsm::dummy_burst_filter's
* constructor is in a private implementation
* class. grgsm::dummy_burst_filter::make is the public interface for
* creating new instances.
*/
static sptr make();
};
} // namespace gsm
} // namespace gr
#endif /* INCLUDED_GSM_DUMMY_BURST_FILTER_H */

1
lib/CMakeLists.txt
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@ -48,6 +48,7 @@ list(APPEND grgsm_sources
decoding/ViterbiR204.cpp
flow_control/burst_timeslot_splitter_impl.cc
flow_control/burst_fnr_filter_impl.cc
flow_control/dummy_burst_filter_impl.cc
misc_utils/controlled_rotator_cc_impl.cc
misc_utils/controlled_const_source_f_impl.cc
misc_utils/message_printer_impl.cc

105
lib/flow_control/dummy_burst_filter_impl.cc Normal file
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@ -0,0 +1,105 @@
/* -*- c++ -*- */
/* @file
* @author Roman Khassraf <rkhassraf@gmail.com>
* @section LICENSE
*
* Gr-gsm is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* Gr-gsm is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with gr-gsm; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gnuradio/io_signature.h>
#include "dummy_burst_filter_impl.h"
#include <stdio.h>
#include <grgsm/endian.h>
#include <grgsm/gsmtap.h>
namespace gr {
namespace gsm {
// dummy burst defined in gsm 05.02, section 5.2.6
const int8_t dummy_burst_filter_impl::d_dummy_burst[] = {0,0,0,
1,1,1,1,1,0,1,1,0,1,1,1,0,1,1,0,
0,0,0,0,1,0,1,0,0,1,0,0,1,1,1,0,
0,0,0,0,1,0,0,1,0,0,0,1,0,0,0,0,
0,0,0,1,1,1,1,1,0,0,0,1,1,1,0,0,
0,1,0,1,1,1,0,0,0,1,0,1,1,1,0,0,
0,1,0,1,0,1,1,1,0,1,0,0,1,0,1,0,
0,0,1,1,0,0,1,1,0,0,1,1,1,0,0,1,
1,1,1,0,1,0,0,1,1,1,1,1,0,0,0,1,
0,0,1,0,1,1,1,1,1,0,1,0,1,0,
0,0,0 };
dummy_burst_filter::sptr
dummy_burst_filter::make()
{
return gnuradio::get_initial_sptr
(new dummy_burst_filter_impl());
}
/*
* The private constructor
*/
dummy_burst_filter_impl::dummy_burst_filter_impl()
: gr::block("dummy_burst_filter",
gr::io_signature::make(0, 0, 0),
gr::io_signature::make(0, 0, 0))
{
message_port_register_in(pmt::mp("in"));
message_port_register_out(pmt::mp("out"));
set_msg_handler(pmt::mp("in"), boost::bind(&dummy_burst_filter_impl::process_burst, this, _1));
}
/*
* Our virtual destructor.
*/
dummy_burst_filter_impl::~dummy_burst_filter_impl() {}
void dummy_burst_filter_impl::process_burst(pmt::pmt_t msg)
{
pmt::pmt_t header_plus_burst = pmt::cdr(msg);
int8_t * burst = (int8_t *)(pmt::blob_data(header_plus_burst)) + sizeof(gsmtap_hdr);
size_t burst_len = pmt::blob_length(header_plus_burst) - sizeof(gsmtap_hdr);
if (!is_dummy_burst(burst, burst_len))
{
message_port_pub(pmt::mp("out"), msg);
}
}
bool dummy_burst_filter_impl::is_dummy_burst(int8_t *burst, size_t burst_len)
{
if (burst_len != DUMMY_BURST_LEN)
{
return false;
}
for (int i=0; i<DUMMY_BURST_LEN; i++)
{
if (burst[i] != d_dummy_burst[i])
{
return false;
}
}
return true;
}
} /* namespace gsm */
} /* namespace gr */

48
lib/flow_control/dummy_burst_filter_impl.h Normal file
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@ -0,0 +1,48 @@
/* -*- c++ -*- */
/* @file
* @author Roman Khassraf <rkhassraf@gmail.com>
* @section LICENSE
*
* Gr-gsm is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* Gr-gsm is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with gr-gsm; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef INCLUDED_GSM_DUMMY_BURST_FILTER_IMPL_H
#define INCLUDED_GSM_DUMMY_BURST_FILTER_IMPL_H
#define DUMMY_BURST_LEN 148
#include <grgsm/flow_control/dummy_burst_filter.h>
namespace gr {
namespace gsm {
class dummy_burst_filter_impl : public dummy_burst_filter
{
private:
bool is_dummy_burst(int8_t *burst, size_t burst_len);
static const int8_t d_dummy_burst[];
public:
dummy_burst_filter_impl();
~dummy_burst_filter_impl();
void process_burst(pmt::pmt_t msg);
};
} // namespace gsm
} // namespace gr
#endif /* INCLUDED_GSM_DUMMY_BURST_FILTER_IMPL_H */

1
python/CMakeLists.txt
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@ -49,3 +49,4 @@ set(GR_TEST_PYTHON_DIRS ${CMAKE_BINARY_DIR}/swig)
GR_ADD_TEST(qa_decryption ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/qa_decryption.py)
GR_ADD_TEST(qa_burst_timeslot_splitter ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/qa_burst_timeslot_splitter.py)
GR_ADD_TEST(qa_burst_fnr_filter ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/qa_burst_fnr_filter.py)
GR_ADD_TEST(qa_dummy_burst_filter ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/qa_dummy_burst_filter.py)

102
python/qa_dummy_burst_filter.py Executable file
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@ -0,0 +1,102 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @file
# @author Roman Khassraf <rkhassraf@gmail.com>
# @section LICENSE
#
# Gr-gsm is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
#
# Gr-gsm is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with gr-gsm; see the file COPYING. If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street,
# Boston, MA 02110-1301, USA.
#
#
from gnuradio import gr, gr_unittest, blocks
import grgsm
class qa_dummy_burst_filter (gr_unittest.TestCase):
def setUp (self):
self.tb = gr.top_block ()
def tearDown (self):
self.tb = None
def test_001 (self):
"""
filter mode less_or_equal, limiting frame number 1500123
24 bursts as input, 10 of them dummy bursts
"""
framenumbers_input = [1259192, 1076346, 1076242, 235879, 1259218, 2194302, 2714322, 1588, 1259244, 1563637, 1435624, 1928543, 503726, 1571144, 2658397, 1807445, 869789, 624070, 2005511, 1306953, 2284894, 1600339, 551375, 1259270]
timeslots_input = [6, 3, 4, 3, 5, 3, 2, 7, 1, 6, 0, 7, 2, 3, 2, 0, 7, 1, 0, 6, 0, 6, 5, 7]
bursts_input = [
"0001100001000111100111101111100101000100101011000010011110011101001111101100010100111111100000110100011111101011101100100111110011000100010001010000",
"0001000101000000001001111110000110010110110111110111101000001101001111101100010100111111001110001001110101110001010001000111011010010001011011000000",
"0001111101101110110000010100100111000001001000100000001111100011100010111000101110001010111010010100011001100111001111010011111000100101111101010000",
"0000010010100000001001101010100001011100010001101100111111101101001111101100010100111111101101001110100010101110010110101111100010010000110010110000",
"0000010101010110010011110101010101101100000000001000100100101010000111011101001000011101011101110000101011001111000100001000000000001110010001111000",
"0001000000000010111010100000010101000010001010111010000000011010000111011101001000011101000000100010111110101000000001000000000010111010100000000000",
"0001111101101110110000010100100111000001001000100000001111100011100010111000101110001010111010010100011001100111001111010011111000100101111101010000",
"0000000000111110101010100001000000100010101110101010000101001010000111011101001000011101001010001111101010001000010000000000101110101010100000010000",
"0001111101101110110000010100100111000001001000100000001111100011100010111000101110001010111010010100011001100111001111010011111000100101111101010000",
"0001111101101110110000010100100111000001001000100000001111100011100010111000101110001010111010010100011001100111001111010011111000100101111101010000",
"0001111101101110110000010100100111000001001000100000001111100011100010111000101110001010111010010100011001100111001111010011111000100101111101010000",
"0001111101101110110000010100100111000001001000100000001111100011100010111000101110001010111010010100011001100111001111010011111000100101111101010000",
"0001000100000011001010111001111100011010000000000000001001001010000111011101001000011101010110000101111010011001110110001001011010101000011110110000",
"0001100001000111111111100001011000000011010110111010110000111010000111011101001000011101100010111100100101110001101000110100110000001010101110011000",
"0000000100111011000000000010100100001100101010000000010010101010000111011101001000011101000110110001110110000100110100110110011001100100000101100000",
"0000100101111010011110111010100111010100011011011101100111001010000111011101001000011101010000111010000110100000001000010011101011001001110100011000",
"0001111101101110110000010100100111000001001000100000001111100011100010111000101110001010111010010100011001100111001111010011111000100101111101010000",
"0000110101000011011010110000110011010000000001001010110010001010000111011101001000011101010000011000111001101110000000110010100001101110101000100000",
"0001111101101110110000010100100111000001001000100000001111100011100010111000101110001010111010010100011001100111001111010011111000100101111101010000",
"0001111101101110110000010100100111000001001000100000001111100011100010111000101110001010111010010100011001100111001111010011111000100101111101010000",
"0001100010000001000111011100101101101010100001111101001000101010000111011101001000011101111010000011010110010111011111010010001000001101100011111000",
"0001111101101110110000010100100111000001001000100000001111100011100010111000101110001010111010010100011001100111001111010011111000100101111101010000",
"0000001000100011000000000000110100000000010000001010100100001010000111011101001000011101000010010000000000001001000001011000000001010000000100010000",
"0000100000110001000000000100000110001011100001001000000000001010000111011101001000011101001010010001010000000111010000000011000001000000000101010000",
]
bursts_expected = [
"0001100001000111100111101111100101000100101011000010011110011101001111101100010100111111100000110100011111101011101100100111110011000100010001010000",
"0001000101000000001001111110000110010110110111110111101000001101001111101100010100111111001110001001110101110001010001000111011010010001011011000000",
"0000010010100000001001101010100001011100010001101100111111101101001111101100010100111111101101001110100010101110010110101111100010010000110010110000",
"0000010101010110010011110101010101101100000000001000100100101010000111011101001000011101011101110000101011001111000100001000000000001110010001111000",
"0001000000000010111010100000010101000010001010111010000000011010000111011101001000011101000000100010111110101000000001000000000010111010100000000000",
"0000000000111110101010100001000000100010101110101010000101001010000111011101001000011101001010001111101010001000010000000000101110101010100000010000",
"0001000100000011001010111001111100011010000000000000001001001010000111011101001000011101010110000101111010011001110110001001011010101000011110110000",
"0001100001000111111111100001011000000011010110111010110000111010000111011101001000011101100010111100100101110001101000110100110000001010101110011000",
"0000000100111011000000000010100100001100101010000000010010101010000111011101001000011101000110110001110110000100110100110110011001100100000101100000",
"0000100101111010011110111010100111010100011011011101100111001010000111011101001000011101010000111010000110100000001000010011101011001001110100011000",
"0000110101000011011010110000110011010000000001001010110010001010000111011101001000011101010000011000111001101110000000110010100001101110101000100000",
"0001100010000001000111011100101101101010100001111101001000101010000111011101001000011101111010000011010110010111011111010010001000001101100011111000",
"0000001000100011000000000000110100000000010000001010100100001010000111011101001000011101000010010000000000001001000001011000000001010000000100010000",
"0000100000110001000000000100000110001011100001001000000000001010000111011101001000011101001010010001010000000111010000000011000001000000000101010000"
]
dummy_burst_filter = grgsm.dummy_burst_filter()
src = grgsm.burst_source_qa(framenumbers_input, timeslots_input, bursts_input)
sink = grgsm.burst_sink_qa()
self.tb.msg_connect(src, "out", dummy_burst_filter, "in")
self.tb.msg_connect(dummy_burst_filter, "out", sink, "in")
self.tb.run()
bursts_result = list(sink.get_burst_data())
self.assertEqual(bursts_expected, bursts_result)
if __name__ == '__main__':
gr_unittest.run(qa_dummy_burst_filter, "qa_dummy_burst_filter.xml")

3
swig/grgsm_swig.i
View File

@ -18,6 +18,7 @@
#include "grgsm/demapping/tch_f_chans_demapper.h"
#include "grgsm/flow_control/burst_timeslot_splitter.h"
#include "grgsm/flow_control/burst_fnr_filter.h"
#include "grgsm/flow_control/dummy_burst_filter.h"
#include "grgsm/misc_utils/bursts_printer.h"
#include "grgsm/misc_utils/controlled_const_source_f.h"
#include "grgsm/misc_utils/controlled_rotator_cc.h"
@ -55,6 +56,8 @@ GR_SWIG_BLOCK_MAGIC2(gsm, tch_f_chans_demapper);
GR_SWIG_BLOCK_MAGIC2(gsm, burst_timeslot_splitter);
%include "grgsm/flow_control/burst_fnr_filter.h"
GR_SWIG_BLOCK_MAGIC2(gsm, burst_fnr_filter);
%include "grgsm/flow_control/dummy_burst_filter.h"
GR_SWIG_BLOCK_MAGIC2(gsm, dummy_burst_filter);
%include "grgsm/misc_utils/bursts_printer.h"
GR_SWIG_BLOCK_MAGIC2(gsm, bursts_printer);