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

- use Farrow as Processor::Block

Browse Source 
git-svn-id: http://moon:8086/svn/software/trunk/libsrc/cpp@1013 b431acfa-c32f-4a4a-93f1-934dc6c82436
This commit is contained in:
jens
2022-06-17 07:51:19 +00:00
parent f34c5f1331
commit 58aac48872
1 changed files with 19 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files
radio/tests/interpolation/farrow/test.cpp
+19 -11
View File
@@ -8,9 +8,11 @@
#include <string.h>
#include <iostream>
#include <type_traits>
using namespace std;
using namespace Radio;
using namespace Processor;
CVec wavLoad(const char *pName, WAVEHEADER &format)
{
@@ -126,14 +128,14 @@ class TimingGeneratorGardner : public Interpolation::TimingGenerator
void test()
{
// Setup Farrow
Interpolation::Farrow farrow;
farrow.load("/home/jens/farrow_coeff.dat");
// Setup timing generator
TimingGeneratorGardner timingGenerator;
timingGenerator.setOmega(1.0);
// Setup Farrow
Interpolation::Farrow farrow(timingGenerator);
farrow.load("/home/jens/farrow_coeff.dat");
// Setup IQ data
WAVEHEADER header;
CVec iq_in = wavLoad("m2_12k_12k_i_q_short_2sps.wav", header);
@@ -146,25 +148,31 @@ void test()
size_t n=0;
size_t remain = iq_in.size();
const size_t BLOCKSIZE=1024;
IBuffer *buf_in = farrow.buffer_in();
auto farrow_buf_in = dynamic_cast<Buffer<ComplexScalar>*>(buf_in);
auto farrow_buf_out = new Buffer<ComplexScalar>(BLOCKSIZE);
farrow.buffer_out_add(farrow_buf_out);
while(remain)
{
size_t size = std::min(BLOCKSIZE, remain);
// @2 x symbolrate
// Matched filtering and interpolation
size_t numFed = farrow.feed(&iq_in.data()[n], size);
size_t size = std::min(BLOCKSIZE, remain);
size_t numFed = farrow_buf_in->write(&iq_in.data()[n], size);
n += numFed;
remain -= numFed;
farrow.process(timingGenerator);
Processor::Buffer<ComplexScalar>& buf_farrow = farrow.getOutputBuffer();
while(buf_farrow.len())
farrow.process();
while(farrow_buf_out->len())
{
size_t size = std::min(BLOCKSIZE, buf_farrow.len());
size_t size = std::min(BLOCKSIZE, farrow_buf_out->len());
iq_out.resize(k+size);
for (size_t i=0; i < size; i++)
{
iq_out[k++] = buf_farrow.readAt(0);
iq_out[k++] = farrow_buf_out->readAt(0);
}
}
}