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Ahmet Inan 2025-07-02 08:47:26 +02:00
commit 7c2b4d94a0
2 changed files with 10 additions and 10 deletions
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12
decode.cc
View file

@ -69,9 +69,9 @@ struct Decoder
DSP::TheilSenEstimator<value, tone_count> tse;
SchmidlCox<value, cmplx, search_pos, symbol_len, guard_len> correlator;
CODE::CRC<uint32_t> crc0;
CODE::HadamardEncoder<6> hadamardenc;
CODE::HadamardDecoder<6> hadamarddec;
CODE::PolarListDecoder<mesg_type, code_max> polardec;
CODE::HadamardEncoder<6> hadamard_encoder;
CODE::HadamardDecoder<6> hadamard_decoder;
CODE::PolarListDecoder<mesg_type, code_max> polar_decoder;
uint8_t output_data[data_max];
mesg_type mesg[bits_max];
code_type code[bits_max], perm[bits_max];
@ -324,7 +324,7 @@ struct Decoder
auto clamp = [](int v){ return v < -127 ? -127 : v > 127 ? 127 : v; };
for (int i = 0; i < pilot_tones; ++i)
mode[i] = clamp(std::nearbyint(127 * demod_or_erase(tone[i*block_length+first_pilot], chan[i*block_length+first_pilot]).real() * nrz(seq1())));
int oper_mode = hadamarddec(mode);
int oper_mode = hadamard_decoder(mode);
if (oper_mode < 0 || oper_mode > 15) {
std::cerr << "operation mode " << oper_mode << " unsupported." << std::endl;
continue;
@ -349,7 +349,7 @@ struct Decoder
for (int i = 0; i < symbol_pos+symbol_len+extended_len; ++i)
correlator(buf = next_sample());
seq1.reset();
hadamardenc(mode, oper_mode);
hadamard_encoder(mode, oper_mode);
}
pilot_off = (block_skew * j + first_pilot) % block_length;
for (int i = 0; i < pilot_tones; ++i)
@ -402,7 +402,7 @@ struct Decoder
std::cerr << std::endl;
crc_bits = data_bits + 32;
shuffle(code, perm);
polardec(nullptr, mesg, code, frozen_bits, code_order);
polar_decoder(nullptr, mesg, code, frozen_bits, code_order);
int best = -1;
for (int k = 0; k < mesg_type::SIZE; ++k) {
crc0.reset();

8
encode.cc
View file

@ -46,8 +46,8 @@ struct Encoder
DSP::FastFourierTransform<symbol_len, cmplx, -1> fwd;
DSP::FastFourierTransform<symbol_len, cmplx, 1> bwd;
CODE::CRC<uint32_t> crc0;
CODE::HadamardEncoder<6> hadamardenc;
CODE::PolarEncoder<code_type> polarenc;
CODE::HadamardEncoder<6> hadamard_encoder;
CODE::PolarEncoder<code_type> polar_encoder;
uint8_t input_data[data_max];
code_type code[bits_max], perm[bits_max], mesg[bits_max];
int8_t mode[32];
@ -379,7 +379,7 @@ struct Encoder
guard_interval_weights();
papr_min = 1000, papr_max = -1000;
leading_noise();
hadamardenc(mode, oper_mode);
hadamard_encoder(mode, oper_mode);
if (!oper_mode) {
schmidl_cox();
CODE::MLS seq1(mls1_poly);
@ -414,7 +414,7 @@ struct Encoder
crc0(input_data[i]);
for (int i = 0; i < 32; ++i)
mesg[i+data_bits] = nrz((crc0()>>i)&1);
polarenc(code, mesg, frozen_bits, code_order);
polar_encoder(code, mesg, frozen_bits, code_order);
shuffle(perm, code);
CODE::MLS seq1(mls1_poly);
for (int j = 0, k = 0; j < symbol_count; ++j) {