近场无线电通信多普勒衰减抑制优化仿真研究

摘要

Doppler attenuation of near field source radio communication can improve the quality of radio communication and improve the transmission gain. It presents a near⁃field radio Doppler decay suppression algorithm based on active time reversal mirror. In the paper, radio communication channel model is constructed, the Doppler inhibited decay is realized by using the spatial focusing properties of active time reversal mirror, which reduces the bit error rate of the communication transmission and achieves algorithm improvement. The simulation results show that the proposed algorithm can reduce the signal to noise ratio and the signal to noise ratio decreases with the increase of the communication distance, therefore the Doppler attenuation is effectively suppressed, and the distortion of the communication transmission is small.%近场源无线电通信的多普勒衰减有效抑制可以提高无线电通信的质量，提高传输增益。提出一种基于主动时间反转镜的近场无线电通信多普勒衰减抑制算法，构建无线电通信信道模型，采用主动时间反转镜的空间聚焦特性进行多普勒衰减抑制，降低通信传输的误码率，实现算法改进。仿真结果表明，该算法随着通信距离增长，信噪比减小，多普勒衰减得到有效抑制，通信传输的失真较小。