厦门大学学报（自然科学版）2025，Vol.64Issue(6)：941-948,957,9.DOI:10.6043/j.issn.0438-0479.202505013
海上舰载多基地OFDM无源雷达探测研究
Research on marine shipborne multistatic OFDM passive radar detection
曹亮 1姜名 2栗武华 2蔡玉宝 2孙海信3
作者信息
- 1. 海装某军代室,河南 郑州 450000
- 2. 中国电子科技集团公司第二十七研究所,河南 郑州 450047
- 3. 厦门大学信息学院,福建 厦门 361100
- 折叠
摘要
Abstract
[Objective]Orthogonal frequency division multiplexing(OFDM)signals are ideal non-cooperative illumination sources for shipborne multistatic passive radar receivers.However,the severe multipath interference and channel time-varying characteristics in dynamic maritime environments lead to accumulating demodulation errors of direct waves,thus degrading the accuracy of joint delay-Doppler estimation ultimately severely.Furthermore,existing algorithms struggle to strike a balance between estimation performance and computational efficiency.[Methods]To address this issue,we propose a decoupled atomic norm minimization(D-ANM)framework.By performing one-dimensional rearrangement of the time-frequency observation matrix to construct a parameter-separable estimation model,the method suppresses demodulation error interference while enhancing computational efficiency.[Result]Simulation results demonstrate that,under high demodulation error rates,the proposed D-ANM significantly reduces the mean squared error of delay estimation and shortens computation time compared to conventional approaches.[Conclusion]The approach presented in this paper is applicable to complex shipborne dynamic maritime scenarios.关键词
无源雷达/舰载多基地/原子范数最小化/时延估计/多普勒估计Key words
passive radar/shipborne multistatic/atomic norm minimization/delay estimation/Doppler estimation分类
信息技术与安全科学引用本文复制引用
曹亮,姜名,栗武华,蔡玉宝,孙海信..海上舰载多基地OFDM无源雷达探测研究[J].厦门大学学报（自然科学版）,2025,64(6):941-948,957,9.
