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跳频通信是对抗各种恶意干扰的一种基本手段,已经被广泛地应用于卫星通信系统。针对宽带高速跳频卫星通信的传输需求,提出了一种跳频卫星通信系统抗干扰增效策略,在跳频通信的基础上进一步提高系统的综合抗干扰性能。通过建立完整的宽带高速跳频卫星通信系统仿真模型,结合高效LDPC码、π/4-DQPSK调制和交织等多种技术进行传输波形的优化仿真设计。理论分析和仿真结果表明,采用该波形且Eb/N0不低于6.2 d B时,系统抗阻塞干扰能力不低于22 d B。
Abstract：Frequency hopping communication is a basic means to fight against all kinds of malicious interferences,and has been widely used in satellite communication system. Aiming at the transmission requirement of broadband high-speed frequency hopping satellite communication,a kind of anti-jamming strategy is proposed for frequency hopping satellite communication system,which further improves the performance of the system based on the frequency hopping communication. Through the establishment of a complete broadband high-speed frequency hopping satellite communication system simulation model,combined with efficient LDPC code,π / 4-DQPSK modulation,interleaving and other techniques,the optimization of transmission waveform simulation is designed. Theoretical analysis and simulation results show that with the designed waveform and Eb/ N0 of not less than 6. 2 d B,the system anti-barrage jamming performance is not lower than 22 d B.
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基本信息:
DOI：
中图分类号:TN927.2
引用信息:
[1]刘延路,孙晨华,王赛宇.跳频卫星信号传输波形设计研究[J].无线电工程,2017,47(02):28-31.
基金信息:
国家部委基金资助项目