A recreation of the MIL-188-110 encoding scheme for HF digital data/voice transfer
The encoding steps are as follows: PreambleGenerate() + Input string -> EncodeInputData() -> FECEncodeBits() -> InterleaveBits() -> MGD_Decode() -> channelMap() -> Scramble() -> append -> ConvertToTones()
All you have to do is: open a shell in the file directory
import MIL-STD-188-110C
instring = "Hello, World!"
outsound = main(instring, 75, "L", "Data", "fixed", 1)
wavfile.write("/dir/here/filename.wav", 384000, outsound)You then manually run wavfile.write() (from scipy), so that you can choose your own save location.
The current code is capable of fixed-frequency text encoding, and it produces audio that sounds right, though I don't have a way of testing a decode. The code SHOULD run, but could probably be implemented better.
The C++ code, on the other hand, is not complete, will not run (yet), and could almost DEFINITELY be done a lot better.
The standard used is available here: https://www.sigidwiki.com/images/c/c8/MIL-STD-188_110C_CHG_NOTICE-1.pdf
UPDATE August 22, 2025 I have opted to archive this repository and start again from scratch. I do not believe I was using git tools properly... And have soiled branches, and long since refactored the entire codebase at least once. Please refer to the new repo for the updated codebase.