From: drowe67 <drowe67@01035d8c-6547-0410-b346-abe4f91aad63>
Date: Sat, 17 Sep 2016 02:22:55 +0000 (+0000)
Subject: reversed SD mapping to match LDPC code
X-Git-Url: http://git.whiteaudio.com/gitweb/?a=commitdiff_plain;h=844188b742838e3108cdc46434b0f50537018856;p=freetel-svn-tracking.git

reversed SD mapping to match LDPC code

git-svn-id: https://svn.code.sf.net/p/freetel/code@2873 01035d8c-6547-0410-b346-abe4f91aad63
---

diff --git a/codec2-dev/src/fsk.c b/codec2-dev/src/fsk.c
index 468175bc..14fec2bf 100644
--- a/codec2-dev/src/fsk.c
+++ b/codec2-dev/src/fsk.c
@@ -775,7 +775,7 @@ void fsk2_demod(struct FSK *fsk, uint8_t rx_bits[], float rx_sd[], float fsk_in[
         }
         /* Produce soft decision symbols */
         if(rx_sd != NULL){
-            rx_sd[i] = sqrtf(tmax[1]) - sqrtf(tmax[0]);
+            rx_sd[i] = sqrtf(tmax[0]) - sqrtf(tmax[1]);
         }
         /* Accumulate resampled int magnitude for EbNodB estimation */
         /* Standard deviation is calculated by algorithm devised by crafty soviets */