Here is a list of all files with brief descriptions:

gr-satellites-3.16.0
docs
doxygen
other
include
satellites
api.h
ax100_decode.h
convolutional_encoder.h
costas_loop_8apsk_cc.h
crc.h
crc_append.h
crc_check.h
decode_ra_code.h
decode_rs.h
descrambler308.h
distributed_syncframe_soft.h
doppler_correction.h
encode_rs.h
fixedlen_to_pdu.h
lilacsat1_demux.h
matrix_deinterleaver_soft.h
nrzi_decode.h
nrzi_encode.h
nusat_decoder.h
pdu_add_meta.h
pdu_head_tail.h
pdu_length_filter.h
pdu_scrambler.h
phase_unwrap.h
u482c_decode.h
varlen_packet_framer.h
varlen_packet_tagger.h
viterbi_decoder.h
lib
libfec
ccsds.h
char.h
decode_rs.h
encode_rs.h
fec.h
fixed.h
init_rs.h
rs-common.h
radecoder
ra_config.h
ra_decoder_gen.h
ra_encoder.h
ra_lfsr.h
viterbi
viterbi.h
ax100_decode_impl.h
convolutional_encoder_impl.h
costas_loop_8apsk_cc_impl.h
crc_append_impl.h
crc_check_impl.h
decode_ra_code_impl.h
decode_rs_impl.h
descrambler308_impl.h
distributed_syncframe_soft_impl.h
doppler_correction_impl.h
encode_rs_impl.h
fixedlen_to_pdu_impl.h
golay24.h
lilacsat1_demux_impl.h
matrix_deinterleaver_soft_impl.h
nrzi_decode_impl.h
nrzi_encode_impl.h
nusat_decoder_impl.h
pdu_add_meta_impl.h
pdu_head_tail_impl.h
pdu_length_filter_impl.h
pdu_scrambler_impl.h
phase_unwrap_impl.h
randomizer.h
rs.h
u482c_decode_impl.h
varlen_packet_framer_impl.h
varlen_packet_tagger_impl.h
viterbi.h
viterbi_decoder_impl.h