采用相关函数的OFDM雷达通信共享信号处理算法

doi:10.3969/j.issn.1001-2400.2018.04.003

Abstract

Abstract:

A signal processing method based on the correlation function is proposed for integration of radar and communication with OFDM. First, the Doppler shift between pulses is compensated, then the cross ambiguity function is taken between the compensated signal and transmitted sequence, and finally, the square of the modulus of the cross-ambiguity function output is regarded as the cost function. The range and velocity can be estimated from the peaks of the cost function in the Range-Doppler plane. The randomness property of the communication term has a significant influence on performance. In order to analyze the performance of the proposed method, the mathematical expression for the peak shape and sidelobe mean level is derived, and then the influence of Doppler on the performance is analyzed. Finally, simulation indicates the correctness of the proposed method.

Key words: integration of radar and communication, orthogonal frequency division multiplexing, correlation function, velocity compensation

GU Yabin;ZHANG Linrang;ZHOU Yu;ZHAO Yonghong. OFDM radar and communication sharing signal processing using the correlation function[J].Journal of Xidian University, 2018, 45(4): 12-17+105.

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OFDM radar and communication sharing signal processing using the correlation function

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