jens/GnuRadio
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

- reduced spurious detection of preamble

Browse Source 
git-svn-id: http://moon:8086/svn/software/trunk/projects/GnuRadio@398 b431acfa-c32f-4a4a-93f1-934dc6c82436
This commit is contained in:
jens
2019-01-10 09:52:27 +00:00
parent 49ff240a98
commit 86d994ad42
1 changed files with 23 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
gr-jay/lib/preamble_sync_impl.cc
+23 -3
View File
@@ -81,6 +81,7 @@ int preamble_sync_impl::general_work (int noutput_items, gr_vector_int &ninput_i
{
m_state = PreambleSlow;
m_wordCount = 0;
m_dataCount = 0;
fprintf(stderr, "Reset\n");
}
continue;
@@ -107,8 +108,18 @@ int preamble_sync_impl::general_work (int noutput_items, gr_vector_int &ninput_i
case PreambleSlow:
if ((m_word & 0xFF) == 0xCC)
{
m_wordSize = 1;
m_stateNext = SyncSlow;
m_wordSize = 8;
m_dataCount++;
if (m_dataCount == 8)
{
m_wordSize = 1;
m_stateNext = SyncSlow;
}
}
else
{
m_dataCount = 0;
}
break;
case SyncSlow:
@@ -133,8 +144,17 @@ int preamble_sync_impl::general_work (int noutput_items, gr_vector_int &ninput_i
if ((m_word & 0xFF) == 0xAA)
{
m_wordSize = 8;
m_dataCount++;
if (m_dataCount == 32)
{
m_wordSize = 8;
m_dataCount = 0;
m_stateNext = SyncFast;
}
}
else
{
m_dataCount = 0;
m_stateNext = SyncFast;
}
break;
case SyncFast: