12 lines
737 B
Plaintext
12 lines
737 B
Plaintext
! LDPC (174,87) code
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parameter (KK=87) !Information bits (75 + CRC12)
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parameter (ND=58) !Data symbols
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parameter (NS=21) !Sync symbols (3 @ Costas 7x7)
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parameter (NN=NS+ND) !Total channel symbols (79)
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parameter (NSPS=2048) !Samples per symbol at 12000 S/s
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parameter (N7=7*NSPS) !Samples in Costas 7x7 array (14,336)
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parameter (NZ=NSPS*NN) !Samples in full 15 s waveform (161,792)
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parameter (NMAX=15*12000) !Samples in iwave (180,000)
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parameter (NFFT1=2*NSPS, NH1=NFFT1/2) !Length of FFTs for symbol spectra
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parameter (NHSYM=2*NMAX/NSPS-1) !Number of symbol spectra (half-symbol steps)
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