Phase4ground相关项目的游乐场。_F#_源码_下载.zip

# Gallager-DVB-S2x This is an experimental reference implementation for a DVB-S2x modem, written in F#. It is named after [Robert G. Gallager, who invented LDPC codes in 1963 and described them in his Ph.D. thesis. Implmentation of LDPC codes wasn't practical at the time, so this work was forgotten. In the mid-nineties, people were looking for alternatives to the powerful, but very heavily patent-encumbered Turbo codes, and David J.C. McKay et. al. rediscovered Gallager's work. Since then, LDPC codes have been used in a variety of applications, from hard drives to deep space networks. The code in this repository implements the LDPC codes for the DVB-S2 and DVB-S2x digital satellite TV standards. The purpose of this is to provide a starting point to understand the algorithms and issues, in the hope of furthering the cause of an Open Source implementation of a ground station for satellite ham radio use. This code has been developed using .Net Core (currently net6.0), mostly on Linux. The choice of implementation language was driven by the desire to take advantage of the exceptional clarity and brevity of F#. Similar results could be expected with other OCaml-derived languages.