关键词: 关键词: 变换域通信系统, 远距航空通信, 存储转发机制, 收发频谱不一致

Abstract: Abstract: In order to solve the problem of communication interference in Transform Domain Communication System under complex electromagnetic environment, a TDCS system model based on storage and forward mechanism is proposed. Based on the analysis of the electromagnetic spectrum environment, the specific classifications of sending and receiving both spectrum sensing and storage are made. With the analysis of consistent spectrum conditions, the long distance aviation communication system TDCS model are established based on store and forward modules in inconsistent spectrum conditions, and the specific communication schemes are designed, which can effectively improve the system performance. The simulation results show that the interference models are reasonable; The performance of TDCS system is close to the ideal bit error rate under the condition of the same spectrum; Under the condition of different frequency spectrum and the more concentrated comb spectrum interference, the bit error rate is reduced by about 24.48%, and with the increase of SNR, the performance gets more improvements. In the same bit error rate conditions, it improves about 1dB for performance.

Key words: Keywords: Transform Domain Communication System, long distance aeronautical communication, store and forward mechanism, different frequency spectrum