Forward error correction for SDR, space, and satellite applications.

fec implements two error-correcting codes that show up throughout software-defined radio and spacecraft links:

Convolutional codes with a Viterbi decoder (hard and soft decision), including the common rate-1/2 k=7, rate-1/2 k=9, rate-1/3 k=9, and rate-1/6 k=15 codes. Supports any rate from 1/2 to 1/8 and any order from k=4 to k=16. On nightly Rust, the simd feature enables a Viterbi decoder with acceleration on SSE/AVX2/AVX512.

Reed–Solomon codes over GF(2⁸) with error and erasure decoding, including the standard CCSDS (255,223) code in both the conventional and the on-the-wire dual-basis (Berlekamp) representations.

fec started as and draws heavy inspiration from the author's own libcorrect , a C library for forward error correction.…