iqbal: Add reference to SDR# blog post

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
pull/1/head
Sylvain Munaut 10 years ago
parent 42a684e0bf
commit f9df8894c7
  1. 11
      src/iqbal.c

@ -207,6 +207,17 @@ osmo_iqbal_cxvec_estimate(const struct osmo_cxvec *sig,
/* IQ balance optimization */
/* ------------------------------------------------------------------------ */
/*
* The actual algorithm used here is inspired by the IQ balancer of SDR#
* by Youssef Touil and described here :
*
* http://sdrsharp.com/index.php/automatic-iq-correction-algorithm
*
* The main differences are:
* - Objective function uses complex correlation of left/right side of FFT
* - Optimization based on steepest gradient with dynamic step size
*/
/*! \brief Default values for the optimization algorithm */
const struct osmo_iqbal_opts osmo_iqbal_default_opts = {
.fft_size = 1024,

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