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RDS demod: bugfix and errors debug prompt

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This commit is contained in:
Edouard Griffiths 2015-12-10 15:02:16 +01:00
parent ea0640c844
commit dbd1db1f28
1 changed files with 9 additions and 5 deletions
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14
plugins/channel/bfm/rdsdemod.cpp
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@ -15,6 +15,7 @@
// along with this program. If not, see <http://www.gnu.org/licenses/>. // // along with this program. If not, see <http://www.gnu.org/licenses/>. //
/////////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////////
#include <QDebug>
#include <math.h> #include <math.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
@ -78,6 +79,8 @@ void RDSDemod::process(Real rdsSample, Real pilotPhaseSample)
m_rdsClockLO_1 = m_rdsClockLO; m_rdsClockLO_1 = m_rdsClockLO;
} }
m_numSamples++;
} }
Real RDSDemod::filter_lp_2400_iq(Real input, int iqIndex) Real RDSDemod::filter_lp_2400_iq(Real input, int iqIndex)
@ -102,23 +105,24 @@ int RDSDemod::sign(Real a)
void RDSDemod::biphase(Real acc) void RDSDemod::biphase(Real acc)
{ {
static int reading_frame = 0;
if (sign(acc) != sign(m_acc_1)) // two successive of different sign: error detected if (sign(acc) != sign(m_acc_1)) // two successive of different sign: error detected
{ {
m_totErrors[m_counter % 2]++; m_totErrors[m_counter % 2]++;
} }
if (m_counter % 2 == reading_frame) // two successive of the same sing: OK if (m_counter % 2 == m_readingFrame) // two successive of the same sign: OK
{ {
print_delta(sign(acc + m_acc_1)); print_delta(sign(acc + m_acc_1));
} }
if (m_counter == 0) if (m_counter == 0)
{ {
if (m_totErrors[1 - reading_frame] < m_totErrors[reading_frame]) if (m_totErrors[1 - m_readingFrame] < m_totErrors[m_readingFrame])
{ {
reading_frame = 1 - reading_frame; m_readingFrame = 1 - m_readingFrame;
double qua = (1.0 * abs(m_totErrors[0] - m_totErrors[1]) / (m_totErrors[0] + m_totErrors[1])) * 100;
qDebug("RDSDemod::biphase: frame: %d errs: %3d %3d qual: %3.0f%%\n", m_readingFrame, m_totErrors[0], m_totErrors[1], qua);
} }
m_totErrors[0] = 0; m_totErrors[0] = 0;