Direct Sequence Spread Spectrum Modulation#4

Merged

Forgata merged 8 commits into

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feature/modulator

Mar 8, 2026

Commits on Mar 8, 2026

feat: create a class for the dsss spreading algorith to provide enough processing gain to pull out injected signal.
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change dec script and build script
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feat: DSSS spreading algorithm to distribute the info of a single bit to 64 different freq components to produce a 'spread' chip stream by multiplying with the PN sequence
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feat: implement a Galoir LFSR to generate a deterministic maximal-length PN sequence needed to hide data
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feat: implement a PN permutation to constanly change the order in which the safe bins are filled to avoid predictable linear mapping
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feat: add spectral injection. loop through the spread chips and applies a phase shift to the corresponding bins and simultaneously conjugates symmetry
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major feat: wire in DSS modulation into the main frame processor
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feat: pipe bitstream and pointer to the frame processor for embedding and DSSS modulation
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