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generate tone reservation kernel for each symbol

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This commit is contained in:
Ahmet Inan 2025-07-01 11:51:23 +02:00
commit aca54002cc
1 changed files with 6 additions and 4 deletions
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10
encode.cc
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@ -290,11 +290,13 @@ struct Encoder
int offset = (freq_off * symbol_len) / rate;
tone_off = offset - tone_count / 2;
}
void tone_reservation_kernels()
void tone_reservation_kernel(int roff)
{
value mag = 1 / value(10 * reserved_tones);
for (int i = 0; i < symbol_len; ++i)
temp[i] = 0;
for (int i = 0; i < reserved_tones; ++i)
temp[bin(i*block_length+reserved_offset)] = mag;
temp[bin(i*block_length+tone_off+roff)] = mag;
bwd(kern, temp);
}
void guard_interval_weights()
@ -312,7 +314,6 @@ struct Encoder
pcm(pcm), crc0(0x8F6E37A0)
{
setup(oper_mode, freq_off);
tone_reservation_kernels();
guard_interval_weights();
papr_min = 1000, papr_max = -1000;
pilot_block();
@ -372,12 +373,13 @@ struct Encoder
k += bits;
}
}
tone_reservation_kernel(roff);
symbol();
}
}
for (int i = 0; i < tone_count; ++i)
tone[i] = 0;
symbol();
symbol(false);
std::cerr << "PAPR: " << DSP::decibel(papr_min) << " .. " << DSP::decibel(papr_max) << " dB" << std::endl;
}
};