卫星通信中的新型级联码研究与实现

Satellite communication refers to the use of man-made earth satellite as a relay station, it transmits the information by transmitting or reflecting the electromagnetic waves in space. Satellite channel is a typical time-varying and fading channel. For the purpose of compensating the information quality in the receiver, the method of error-coding is more signigicant than increasing system power. Cascade code described in this paper is the use of TTCM as the inner code and RS is the outer code and cascaded by the block interleaver. This is mainly to take advantage of the TTCM can be decoded by optimum Viterbi, besides RS has a burst error correction capability, thus the ability of correcting code error is greatly improved.