{"title":"A Robust Orthogonal Matching Pursuit Method for Doppler Reconstruction of PRI-Staggered Radar","authors":"Xianwen Zhang, Qiang He, Yuan Gao, Yong Yu","doi":"10.1049/rsn2.70070","DOIUrl":null,"url":null,"abstract":"<p>The utilisation of staggered pulse repetition intervals (PRIs) in pulse-Doppler (PD) radar systems is instrumental in expanding the unambiguous Doppler interval, which is traditionally confined by the constraints of uniform PRIs, and in enhancing the electronic countermeasures capabilities of the radar. However, the presence of high Doppler sidelobes emerges as a principal impediment to the practical deployment of such systems. In this paper, we introduce a novel approach to accurately estimate the Doppler frequencies of targets in PRI-staggered radar systems, which integrates gradient descent and orthogonal matching pursuit algorithms to effectively reconstruct the Doppler profiles of targets with arbitrary velocities. The simulation results demonstrate the method’s effectiveness and robustness, indicating its promising suitability for practical application within PD radar systems.</p>","PeriodicalId":50377,"journal":{"name":"Iet Radar Sonar and Navigation","volume":"19 1","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/rsn2.70070","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Iet Radar Sonar and Navigation","FirstCategoryId":"94","ListUrlMain":"https://ietresearch.onlinelibrary.wiley.com/doi/10.1049/rsn2.70070","RegionNum":4,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
The utilisation of staggered pulse repetition intervals (PRIs) in pulse-Doppler (PD) radar systems is instrumental in expanding the unambiguous Doppler interval, which is traditionally confined by the constraints of uniform PRIs, and in enhancing the electronic countermeasures capabilities of the radar. However, the presence of high Doppler sidelobes emerges as a principal impediment to the practical deployment of such systems. In this paper, we introduce a novel approach to accurately estimate the Doppler frequencies of targets in PRI-staggered radar systems, which integrates gradient descent and orthogonal matching pursuit algorithms to effectively reconstruct the Doppler profiles of targets with arbitrary velocities. The simulation results demonstrate the method’s effectiveness and robustness, indicating its promising suitability for practical application within PD radar systems.
期刊介绍:
IET Radar, Sonar & Navigation covers the theory and practice of systems and signals for radar, sonar, radiolocation, navigation, and surveillance purposes, in aerospace and terrestrial applications.
Examples include advances in waveform design, clutter and detection, electronic warfare, adaptive array and superresolution methods, tracking algorithms, synthetic aperture, and target recognition techniques.