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- demystifyied dataset
- matched filter
- timing sync (whole sig, not symbol based)
- EQ is worse, I guess due to symbol timing recovery

Pulsef:
- can be used as matched filter now, the only thing I really changed was the sampling behavior - before it assumed that the input is always fsym, now it can be anything... fdac is output frequency for both methods
This commit is contained in:
silas (home)
2026-01-08 13:20:35 +01:00
parent 5c39a7f98a
commit 062c5dfbaf
6 changed files with 313 additions and 117 deletions
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8
Functions/EQ_structures/ffe.m
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@@ -131,11 +131,11 @@ switch precode_mode
tx_bits_precoded = mapper.demap(tx_symbols_precoded);
rx_bits = mapper.demap(eq_signal_hd_precoded);
[~, errors_precoded, ber_precoded, ~] = calc_ber(rx_bits.signal, tx_bits_precoded.signal, "skip_front", 30000, "skip_end", 150, "returnErrorLocation", 1);
[~, errors_precoded, ber_precoded, ~] = calc_ber(rx_bits.signal, tx_bits_precoded.signal, "skip_front", 10, "skip_end", 10, "returnErrorLocation", 1);
% B) Just determine BER
rx_bits = mapper.demap(eq_signal_hd);
[bits, errors, ber, error_pos] = calc_ber(rx_bits.signal, tx_bits.signal, "skip_front", 30000, "skip_end", 150, "returnErrorLocation", 1);
[bits, errors, ber, error_pos] = calc_ber(rx_bits.signal, tx_bits.signal, "skip_front", 10, "skip_end", 10, "returnErrorLocation", 1);
case db_mode.db_precoded
% Data is precoded on TX side
@@ -143,12 +143,12 @@ switch precode_mode
eq_signal_hd_decoded = Duobinary().encode(eq_signal_hd, "M", M);
eq_signal_hd_decoded = Duobinary().decode(eq_signal_hd_decoded, "M", M);
rx_bits_decoded = mapper.demap(eq_signal_hd_decoded);
[~, errors_precoded, ber_precoded, ~] = calc_ber(rx_bits_decoded.signal, tx_bits.signal, "skip_front", 30000, "skip_end", 150, "returnErrorLocation", 1);
[~, errors_precoded, ber_precoded, ~] = calc_ber(rx_bits_decoded.signal, tx_bits.signal, "skip_front", 10, "skip_end", 10, "returnErrorLocation", 1);
% B) Omit the Coding by comparing with demapped TX symbol sequence
tx_bits_demapped = mapper.demap(tx_symbols);
rx_bits = mapper.demap(eq_signal_hd);
[bits, errors, ber, error_pos] = calc_ber(rx_bits.signal, tx_bits_demapped.signal, "skip_front", 30000, "skip_end", 150, "returnErrorLocation", 1);
[bits, errors, ber, error_pos] = calc_ber(rx_bits.signal, tx_bits_demapped.signal, "skip_front", 10, "skip_end", 10, "returnErrorLocation", 1);
end
end