空天预警研究学报2026，Vol.40Issue(3)：157-161,177,6.DOI:10.3969/j.issn.2097-180X.2026.03.001
基于L-BFGS的认知雷达区域叠加模糊函数抑制波形设计
Waveform design based on L-BFGS for regional superimposed ambiguity function suppression in cognitive radar
摘要
Abstract
Aimed at the problem of the degradation of target detection performance in cognitive radar caused by strong interference from the neighborhood,a constant modulus waveform design method based on regional su-perimposed ambiguity function suppression is proposed.First,the detection center and its neighborhood are de-fined as a protected region,and a model is established of superimposed leakage from multiple strong interference sources to the protected region through the sidelobes of ambiguity functions.Then,a high-order norm is adopted to construct the regional leakage suppression criterion,and the constant modulus waveform is solved by using the phase-domain limited-memory Broyden-Fletcher-Goldfarb-Shanno(L-BFGS)algorithm.Simulation results show that,the proposed method reduces the average leakage level in the protected region,improves the output sig-nal-to-interference-plus-noise ratio,and also provides a good neighborhood anti-interference performance when target location exists estimation errors or range-Doppler grid mismatch.关键词
认知雷达/恒模波形设计/区域叠加模糊函数抑制/相位域L-BFGS算法Key words
cognitive radar/constant modulus waveform design/regional superimposed ambiguity function suppression/phase-domain L-BFGS algorithm分类
信息技术与安全科学引用本文复制引用
周畅,陈阿磊,夏云丽,陈文瑾..基于L-BFGS的认知雷达区域叠加模糊函数抑制波形设计[J].空天预警研究学报,2026,40(3):157-161,177,6.基金项目
湖北省自然科学基金资助项目(2023AFB482) （2023AFB482）
