1
0
mirror of https://github.com/f4exb/sdrangel.git synced 2026-08-14 15:33:34 -04:00

WDSP: more double precision calculation

This commit is contained in:
f4exb
2024-07-18 02:08:05 +02:00
parent 37a36532d0
commit 40f7ecdaa0
25 changed files with 837 additions and 446 deletions
+14 -8
View File
@@ -40,16 +40,15 @@ void CBL::calc_cbl (CBL *a)
a->mtau = exp(-1.0 / (a->sample_rate * a->tau));
}
CBL* CBL::create_cbl
(
CBL* CBL::create_cbl(
int run,
int buff_size,
float *in_buff,
float *out_buff,
int mode,
int sample_rate,
float tau
)
double tau
)
{
CBL *a = new CBL;
a->run = run;
@@ -57,7 +56,7 @@ CBL* CBL::create_cbl
a->in_buff = in_buff;
a->out_buff = out_buff;
a->mode = mode;
a->sample_rate = (float)sample_rate;
a->sample_rate = (double) sample_rate;
a->tau = tau;
calc_cbl (a);
return a;
@@ -81,7 +80,8 @@ void CBL::xcbl (CBL *a)
if (a->run)
{
int i;
float tempI, tempQ;
double tempI, tempQ;
for (i = 0; i < a->buff_size; i++)
{
tempI = a->in_buff[2 * i + 0];
@@ -90,12 +90,18 @@ void CBL::xcbl (CBL *a)
a->out_buff[2 * i + 1] = a->in_buff[2 * i + 1] - a->prevQin + a->mtau * a->prevQout;
a->prevIin = tempI;
a->prevQin = tempQ;
if (fabs(a->prevIout = a->out_buff[2 * i + 0]) < 1.0e-100) a->prevIout = 0.0;
if (fabs(a->prevQout = a->out_buff[2 * i + 1]) < 1.0e-100) a->prevQout = 0.0;
if (fabs(a->prevIout = a->out_buff[2 * i + 0]) < 1.0e-20)
a->prevIout = 0.0;
if (fabs(a->prevQout = a->out_buff[2 * i + 1]) < 1.0e-20)
a->prevQout = 0.0;
}
}
else if (a->in_buff != a->out_buff)
{
std::copy(a->in_buff, a->in_buff + a->buff_size * 2, a->out_buff);
}
}
void CBL::setBuffers_cbl (CBL *a, float* in, float* out)