Aerospace Applications of LDPC Coding Method

The bit rate of space communication is increasing, and the frequency bands used are also increasing. The Ka-band data transmission system, which is currently widely used, has a significant impact on its link performance due to atmospheric and rain attenuation. In order to ensure the reliability of data transmission, redundant coding measures are generally used. This paper mainly studies the application of LDPC codec algorithm in space communication, proposes a performance optimization design method, and gives the results of on-orbit verification of geostationary satellites.