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Add nomfreq, freqofs, dlt to PDU metadata

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Add Nominal Frequency, Carrier Frequency Offset and Data Link Type (DLT)
tags to PDU.

Signed-off-by: Jonathan Brucker jonathan.brucke@gmail.com
This commit is contained in:
Jonathan Brucker
2016-08-30 16:15:54 +00:00
parent da1b0eb713
commit bef6e3d962
3 changed files with 22 additions and 5 deletions
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lib/frame_equalizer_impl.cc
+7 -2
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@@ -39,7 +39,8 @@ frame_equalizer_impl::frame_equalizer_impl(Equalizer algo, double freq, double b
gr::io_signature::make(1, 1, 64 * sizeof(gr_complex)),
gr::io_signature::make(1, 1, 48)),
d_current_symbol(0), d_log(log), d_debug(debug), d_equalizer(NULL),
d_freq(freq), d_bw(bw), d_frame_bytes(0), d_frame_symbols(0) {
d_freq(freq), d_bw(bw), d_frame_bytes(0), d_frame_symbols(0),
d_freq_offset_from_synclong(0.0) {
message_port_register_out(pmt::mp("symbols"));
@@ -131,6 +132,7 @@ frame_equalizer_impl::general_work (int noutput_items,
d_frame_symbols = 0;
d_frame_mod = d_bpsk;
d_freq_offset_from_synclong = pmt::to_double(tags.front().value) * d_bw;
d_epsilon0 = pmt::to_double(tags.front().value) * d_bw / (2 * M_PI * d_freq);
d_er = 0;
@@ -207,11 +209,14 @@ frame_equalizer_impl::general_work (int noutput_items,
if(decode_signal_field(out + o * 48)) {
// TODO: it would better to use pmt::dict instead of raw list of numbers
add_item_tag(0, nitems_written(0) + o,
pmt::string_to_symbol("wifi_start"),
pmt::make_tuple(pmt::from_uint64(d_frame_bytes),
pmt::from_uint64(d_frame_encoding),
pmt::from_double(d_equalizer->get_snr())),
pmt::from_double(d_equalizer->get_snr()),
pmt::from_double(d_freq), // nominal frequency
pmt::from_double(d_freq_offset_from_synclong)),
pmt::string_to_symbol(name()));
}
}