diff options
Diffstat (limited to 'src/iqbal.c')
| -rw-r--r-- | src/iqbal.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/src/iqbal.c b/src/iqbal.c index 1d0ea75..e5432f9 100644 --- a/src/iqbal.c +++ b/src/iqbal.c @@ -28,6 +28,16 @@ /*! \file iqbal.c * \brief IQ balance utils implementation + * + * The actual algorithm used for estimation of the imbalance and its + * optimization 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 */ #include <complex.h> @@ -207,17 +217,6 @@ 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, |