From b80f1794b87f35839cda7f5070223ba5c1c44cea Mon Sep 17 00:00:00 2001
From: piotr <piotr@piotr-desktop.(none)>
Date: Thu, 4 Jun 2009 13:21:04 +0200
Subject: removed functions detect_norm_burst and mafi_norm and replaced them
 with more generic ones

---
 src/lib/gsm_receiver_cf.cc | 41 -----------------------------------------
 1 file changed, 41 deletions(-)

(limited to 'src')

diff --git a/src/lib/gsm_receiver_cf.cc b/src/lib/gsm_receiver_cf.cc
index ce59bee..8e3bad0 100644
--- a/src/lib/gsm_receiver_cf.cc
+++ b/src/lib/gsm_receiver_cf.cc
@@ -695,44 +695,3 @@ int gsm_receiver_cf::get_norm_chan_imp_resp(const gr_complex *in, gr_complex * c
   burst_start = search_start_pos + strongest_window_nr + chan_imp_resp_center - 66 * d_OSR - 2 * d_OSR + 2;
   return burst_start;
 }
-
-void gsm_receiver_cf::detect_norm_burst(const gr_complex * in, gr_complex * chan_imp_resp, int burst_start, unsigned char * output_binary)
-{
-  float output[BURST_SIZE];
-  gr_complex rhh_temp[CHAN_IMP_RESP_LENGTH*d_OSR];
-  gr_complex rhh[CHAN_IMP_RESP_LENGTH];
-  gr_complex filtered_burst[BURST_SIZE];
-  int start_state = 3;
-  unsigned int stop_states[2] = {4, 12};
-
-  autocorrelation(chan_imp_resp, rhh_temp, d_chan_imp_length*d_OSR);
-  for (int ii = 0; ii < (d_chan_imp_length); ii++) {
-    rhh[ii] = conj(rhh_temp[ii*d_OSR]);
-  }
-
-  mafi_norm(&in[burst_start], BURST_SIZE, chan_imp_resp, d_chan_imp_length*d_OSR, filtered_burst);
-
-  viterbi_detector(filtered_burst, BURST_SIZE, rhh, start_state, stop_states, 2, output);
-
-  for (int i = 0; i < BURST_SIZE ; i++) {
-    output_binary[i] = (output[i] > 0);
-  }
-}
-
-inline void gsm_receiver_cf::mafi_norm(const gr_complex * input, int input_length, gr_complex * filter, int filter_length, gr_complex * output)
-{
-  int ii = 0, n, a;
-
-  for (n = 0; n < input_length; n++) {
-    a = n * d_OSR;
-    output[n] = 0;
-    ii = 0;
-
-    while (ii < filter_length) {
-      if ((a + ii) >= input_length*d_OSR)
-        break;
-      output[n] += input[a+ii] * filter[ii]; //!!conj
-      ii++;
-    }
-  }
-}
-- 
cgit v1.2.3