Vol. 110

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2022-05-22

Integrated Waveform of Frequency Diversity Array Radar Communication Based on OFDM Random Frequency Offset Modulation

By Kefei Liao, Jing Zhang, Haitao Wang, Shan Ouyang, and Ningbo Xie
Progress In Electromagnetics Research M, Vol. 110, 145-156, 2022
doi:10.2528/PIERM22032602

Abstract

The integration of radar and communication has always been one of the cross-research hotspots in the field of radar and communication. In order to solve the problems of integration signal separation and the angle-distance coupling, this paper proposes a radar and communication integrated waveform based on random Orthogonal Frequency Division Multiplexing (OFDM) frequency offset modulation for Frequency Diversity Array (FDA). This waveform directly loads OFDM symbols to the elements of FDA, and each element carries a complete OFDM symbol with different information. Random frequency offsets are added between the elements to separate different signal of different elements, which can solve the problem of signal separation and form decoupled radar beam. After transmitting and receiving a series of the waveform, the transmission of communication data and the positioning of radar targets can be completed at the same time. The simulation results show that the waveform not only solves the problem of separating and uncoupling the integrated signal, but also improves the frequency band utilization rate and information transmission rate of the radar communication integrated system.

Citation


Kefei Liao, Jing Zhang, Haitao Wang, Shan Ouyang, and Ningbo Xie, "Integrated Waveform of Frequency Diversity Array Radar Communication Based on OFDM Random Frequency Offset Modulation," Progress In Electromagnetics Research M, Vol. 110, 145-156, 2022.
doi:10.2528/PIERM22032602
http://jpier.org/PIERM/pier.php?paper=22032602

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