VE7UWU/sdrangel
1
0
Fork 0
mirror of https://github.com/f4exb/sdrangel.git synced 2025-04-21 19:09:22 -04:00
Code Issues Projects Releases Wiki Activity

SSB demod: set AGC threshold step up and down maximum time to 100ms

Browse Source
This commit is contained in:
f4exb 2017-07-26 13:36:18 +02:00
parent da6b60d48c
commit a815507f77
1 changed files with 7 additions and 6 deletions

13
sdrbase/dsp/agc.cpp
View File

@ -9,6 +9,7 @@
#include "dsp/agc.h"
#include "util/smootherstep.h"
#define StepLengthMax 4800 // 100ms
AGC::AGC(int historySize, Real R) :
m_u0(1.0),
@ -49,9 +50,9 @@ MagSquaredAGC::MagSquaredAGC(int historySize, double R, double threshold) :
m_magsq(0.0),
m_threshold(threshold),
m_gate(0),
m_stepLength(std::min(2400, historySize/2)),
m_stepLength(std::min(StepLengthMax, historySize/2)),
m_stepUpCounter(0),
m_stepDownCounter(0),
m_stepDownCounter(m_stepLength),
m_gateCounter(0)
{}
@ -60,7 +61,7 @@ MagSquaredAGC::~MagSquaredAGC()
void MagSquaredAGC::resize(int historySize, Real R)
{
m_stepLength = std::min(2400, historySize/2);
m_stepLength = std::min(StepLengthMax, historySize/2);
AGC::resize(historySize, R);
}
@ -132,9 +133,9 @@ MagAGC::MagAGC(int historySize, double R, double threshold) :
m_magsq(0.0),
m_threshold(threshold),
m_gate(0),
m_stepLength(std::min(2400, historySize/2)),
m_stepLength(std::min(StepLengthMax, historySize/2)),
m_stepUpCounter(0),
m_stepDownCounter(0),
m_stepDownCounter(m_stepLength),
m_gateCounter(0)
{}
@ -143,7 +144,7 @@ MagAGC::~MagAGC()
void MagAGC::resize(int historySize, Real R)
{
m_stepLength = std::min(2400, historySize/2);
m_stepLength = std::min(StepLengthMax, historySize/2);
AGC::resize(historySize, R);
}