无人机数据链自适应编码调制方法的半实物仿真技术研究

Adaptive coding and modulation method of hardware-in-the-loop simulation technology research based on UAV data link

针对无人机数据链信息传输的有效性和可靠性需求,提出一种无人机数据链的自适应编码调制方法,通过对自适应编码调制方法的模块化设计,以及仿真计算机与微波仪表的协同工作,在微波暗室环境内,实现了自适应编码调制方法的半实物仿真;仿真结果表明:在信噪比为1.4～14dB区间内,误码率为10-5时,基于Turbo码和LDPC码的自适应编码调制方法的吞吐量高于其它非自适应编码调制方法的吞吐量,提高了无人机数据链信息传输的有效性和可靠性。

Aim at the high efficiency and reliability requirements of unmanned aerial vehicle （UAV） data link when transmits remote measurement and remote--controlled commands, this paper advances an adaptive code and modulation method based on UAV data link. The method has simulated the transmission of the UAV data link using computer and microwave instrument in microwave anechoic chamber. The result of simulation has shown that adaptive Turbo and LDPC coding and modulation method can make the data chain BER achieve 10-5 in the signal--to--noise ratio interval 1. 4-14dB, and have a higher throughput eompare with nonadaptive coding and modulation method. Meet the high efficiency and reliability transmission requirements of the UAV data link.