电子科技大学学报2024，Vol.53Issue(2)：210-218,9.DOI:10.12178/1001-0548.2023171
基于延迟断点映射FMCW的双功能雷达通信系统设计
Design of Dual-Function Radar Communication System Based on Delay Breakpoint Mapping FMCW
摘要
Abstract
Dual-Functional Radar-Communication(DFRC)system based on Frequency Modulated Continuous Wave(FMCW)has the characteristics of high time-frequency utilization,strong anti-Doppler performance and low range sidelobe.The existing FMCW-DFRC waveform designs generate dual-function deterioration and increase the link complexity of communication receivers.A DFRC system based on Delayed Breakpoint Mapping(DBM)-FMCW is designed to modulate data by mapping the location of the delayed breakpoint in the chirp period and the phase between the divided clusters.After carrier mixing and undersampling,dechirping,chip alignment and data demodulation are realized in the digital domain.In the radar processing link,a Breakpoint Area Deletion and Splicing(BADS)scheme is designed to make the radar performance of DFRC consistent with that of unmodulated FMCW.The simulation results show that,compared with the uncompensated scheme,the BADS scheme can reduce the sidelobe amplitude of the image by about 37 dB and is not affected by the modulation data.Compared with the communication performance of existing DFRC schemes based on chirped waveform,DBM-FMCW reduces the symbol error rate.关键词
啁啾信号/双功能雷达通信/调频连续波/旁瓣抑制/欠采样Key words
chirp signal/dual-functional radar-communication/frequency modulated continuous wave/sidelobe suppression/undersampling分类
信息技术与安全科学引用本文复制引用
徐瑞,文瑞铭,黄子涵,李钢,文光俊..基于延迟断点映射FMCW的双功能雷达通信系统设计[J].电子科技大学学报,2024,53(2):210-218,9.基金项目
国家自然科学基金(61971113,61901095,62371106) （61971113,61901095,62371106）
国家重点研发计划(2018AAA0103203) （2018AAA0103203）
广东省重点领域研究发展计划(2019B010141001) （2019B010141001）
四川省科技规划项目(2022YFG0230,2023YFG0040) （2022YFG0230,2023YFG0040）
