From: okcsampson <okcsampson@01035d8c-6547-0410-b346-abe4f91aad63>
Date: Fri, 16 Jun 2017 01:05:24 +0000 (+0000)
Subject: More ofdm rx index chgs
X-Git-Url: http://git.whiteaudio.com/gitweb/?a=commitdiff_plain;h=f9843459289f85fd2baa124db206e3fa28688ab1;p=freetel-svn-tracking.git

More ofdm rx index chgs


git-svn-id: https://svn.code.sf.net/p/freetel/code@3198 01035d8c-6547-0410-b346-abe4f91aad63
---

diff --git a/codec2-dev/src/ofdm.c b/codec2-dev/src/ofdm.c
index 89888c19..13dfbe1a 100644
--- a/codec2-dev/src/ofdm.c
+++ b/codec2-dev/src/ofdm.c
@@ -495,7 +495,7 @@ void ofdm_demod(struct OFDM *ofdm, int *rx_bits, COMP *rxbuf_in) {
 
     /* previous pilot */
 
-    st = OFDM_M + OFDM_NCP + OFDM_SAMPLESPERFRAME + (-OFDM_NS) * (OFDM_M + OFDM_NCP) + 1 + ofdm->sample_point;
+    st = OFDM_M + OFDM_NCP + OFDM_SAMPLESPERFRAME + (-OFDM_NS) * (OFDM_M + OFDM_NCP) + ofdm->sample_point;
     en = st + OFDM_M;
 
     complex float work[OFDM_M];
@@ -512,8 +512,8 @@ void ofdm_demod(struct OFDM *ofdm, int *rx_bits, COMP *rxbuf_in) {
 
     /* pilot - this frame - pilot */
 
-    for (rr = 1; rr < (OFDM_NS + 3); rr++) {
-        st = OFDM_M + OFDM_NCP + OFDM_SAMPLESPERFRAME + (rr - 1) * (OFDM_M + OFDM_NCP) + 1 + ofdm->sample_point;
+    for (rr = 0; rr < (OFDM_NS + 1); rr++) {
+        st = OFDM_M + OFDM_NCP + OFDM_SAMPLESPERFRAME + rr * (OFDM_M + OFDM_NCP) + ofdm->sample_point;
         en = st + OFDM_M;
         
         for (i = 0; i < (OFDM_NC + 2); i++) {
@@ -523,13 +523,13 @@ void ofdm_demod(struct OFDM *ofdm, int *rx_bits, COMP *rxbuf_in) {
     
             matrix_vector_conjugate_multiply(ofdm, acarrier, work);        
 
-            ofdm->rx_sym[rr][i] = vector_sum(acarrier, 0, (OFDM_NC + 2));
+            ofdm->rx_sym[rr + 1][i] = vector_sum(acarrier, 0, (OFDM_NC + 2));
         }
     }
 
     /* next pilot */
 
-    st = OFDM_M + OFDM_NCP + OFDM_SAMPLESPERFRAME + (2 * OFDM_NS) * (OFDM_M + OFDM_NCP) + 1 + ofdm->sample_point;
+    st = OFDM_M + OFDM_NCP + OFDM_SAMPLESPERFRAME + (2 * OFDM_NS) * (OFDM_M + OFDM_NCP) + ofdm->sample_point;
     en = st + OFDM_M;
 
     for (i = 0; i < (OFDM_NC + 2); i++) {