FGFS-4.1/gr-air-modes
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Update to GR 3.9.0. WIP with plenty of untested code.

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This commit is contained in:
Nick Foster
2021-02-10 20:55:39 -08:00
parent 9c77b55c0b
commit fd1771f161
59 changed files with 207 additions and 16379 deletions
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lib/preamble_impl.cc
+15 -10
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@@ -33,15 +33,19 @@
#include <gnuradio/tags.h>
namespace gr {
namespace air_modes {
air_modes::preamble::sptr air_modes::preamble::make(float channel_rate, float threshold_db) {
return gnuradio::get_initial_sptr(new air_modes::preamble_impl(channel_rate, threshold_db));
using input_type = float;
using output_type = float;
preamble::sptr preamble::make(float channel_rate, float threshold_db) {
return gnuradio::make_block_sptr<preamble_impl>(channel_rate, threshold_db);
}
air_modes::preamble_impl::preamble_impl(float channel_rate, float threshold_db) :
gr::block ("preamble",
gr::io_signature::make2 (2, 2, sizeof(float), sizeof(float)), //stream 0 is received data, stream 1 is moving average for reference
gr::io_signature::make (1, 1, sizeof(float))) //the output soft symbols
preamble_impl::preamble_impl(float channel_rate, float threshold_db)
: gr::block ("preamble",
gr::io_signature::make(2, 2, sizeof(input_type)),
gr::io_signature::make(1, 1, sizeof(output_type)))
{
d_chip_rate = 2000000; //2Mchips per second
set_rate(channel_rate);
@@ -62,16 +66,16 @@ void air_modes::preamble_impl::set_rate(float channel_rate) {
set_history(d_samples_per_symbol);
}
void air_modes::preamble_impl::set_threshold(float threshold_db) {
void preamble_impl::set_threshold(float threshold_db) {
d_threshold_db = threshold_db;
d_threshold = powf(10., threshold_db/20.); //the level that the sample must be above the moving average in order to qualify as a pulse
}
float air_modes::preamble_impl::get_threshold(void) {
float preamble_impl::get_threshold(void) {
return d_threshold_db;
}
float air_modes::preamble_impl::get_rate(void) {
float preamble_impl::get_rate(void) {
return d_sample_rate;
}
@@ -136,7 +140,7 @@ static pmt::pmt_t tag_to_timestamp(gr::tag_t tstamp, uint64_t abs_sample_cnt, in
return tstime;
}
int air_modes::preamble_impl::general_work(int noutput_items,
int preamble_impl::general_work(int noutput_items,
gr_vector_int &ninput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items)
@@ -245,4 +249,5 @@ int air_modes::preamble_impl::general_work(int noutput_items,
return 0;
}
} //namespace air_modes
} //namespace gr