From bef405970fb6d775a93b962367885ed8574ffb48 Mon Sep 17 00:00:00 2001
From: Steven Franke <s.j.franke@icloud.com>
Date: Sun, 24 Jan 2016 23:33:16 +0000
Subject: [PATCH] Changes to text to support new data and revised Figure 4.

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6436 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
---
 lib/ftrsd/ftrsd_paper/ftrsd.lyx | 31 ++++++++++++++++---------------
 1 file changed, 16 insertions(+), 15 deletions(-)

diff --git a/lib/ftrsd/ftrsd_paper/ftrsd.lyx b/lib/ftrsd/ftrsd_paper/ftrsd.lyx
index 9ff2c0b89..fdbbde499 100644
--- a/lib/ftrsd/ftrsd_paper/ftrsd.lyx
+++ b/lib/ftrsd/ftrsd_paper/ftrsd.lyx
@@ -2258,10 +2258,10 @@ Deep Search
 \begin_inset Quotes erd
 \end_inset
 
- decoding.
- Simulated Doppler spreads of 0.2 Hz actually increased the FT and DS decoding
- rates slightly at SNRs close to the decoding threshold, presumably because
- with the low-rate JT65 code signal peaks can provide the information needed
+ (DS) decoding.
+ Simulated Doppler spreads of 0.2 Hz actually increased the FT decoding rate
+ slightly at SNRs close to the decoding threshold, presumably because with
+ the low-rate JT65 code signal peaks can provide the information needed
  for good copy.
 \end_layout
 
@@ -2307,22 +2307,23 @@ Deep Search
 \begin_inset Quotes erd
 \end_inset
 
- algorithm.
+ algorithm with a codeword list of length 
+\begin_inset Formula $L=5850$
+\end_inset
+
+.
  Numbers adjacent to the curves are simulated Doppler spreads in Hz.
- The curve labeled 
-\begin_inset Quotes eld
-\end_inset
-
-Sync
-\begin_inset Quotes erd
-\end_inset
-
- illustrates the success rate of correct time and frequency synchronization
- in the decoder presently implemented in program 
+ In the current version of 
 \emph on
 WSJT-X
 \emph default
+ the performance of the DS algorithm is limited by synchronization failures
+ when 
+\begin_inset Formula $SNR\lesssim-28\,\textrm{dB}$
+\end_inset
+
 .
+ 
 \end_layout
 
 \end_inset