Abstract
As a new type of satellite communication, satellite data link has attracted more and more attention from various countries. This article aims to discuss the channel coding simulation method of satellite communication data link based on big data, in order to provide a solution for further improving the reliability of tactical data link. This paper presents a satellite data link system solution based on LDPC encoding. After simulation, it is found that under the AWGN channel, the error performance of the LDPC (1008,504) data link when the Eb/N0 is greater than −0.6 dB is better than that of the JTIDS type system. When the bit error rate is 10–5, the LDPC data link system has an advantage of about 5 dB. As an alternative code group for channel coding technology, LDPC codes can improve the transmission reliability of the data link, and have certain application prospects in tactical data links.
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