{"title":"Efficient Signal Processing for Frequency-Agile Radar With Limited Computational Resources","authors":"Zexi Wei, Dinghong Lu, Zhe Cao","doi":"10.1049/ell2.70270","DOIUrl":null,"url":null,"abstract":"<p>Frequency-agile radar provides strong anti-jamming capabilities, but its performance is limited by the coupled phase terms arising from target range, velocity, and carrier frequency during coherent accumulation. Existing methods often require substantial computational loads, making them impractical for resource-constrained platforms. This letter proposes a fast high-resolution range profile (HRRP) generation method that eliminates velocity compensation. The key lies in a specially designed waveform that transforms the velocity-related phase into linear phase components. Through the conjugate multiplication of echoes, the linear velocity-related phase is converted into a constant term that enables direct HRRP generation via FFT. Simulations show that the method maintains imaging quality while achieving higher computational efficiency, providing a feasible solution for resource-limited radar platforms.</p>","PeriodicalId":11556,"journal":{"name":"Electronics Letters","volume":"61 1","pages":""},"PeriodicalIF":0.7000,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/ell2.70270","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electronics Letters","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1049/ell2.70270","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
Frequency-agile radar provides strong anti-jamming capabilities, but its performance is limited by the coupled phase terms arising from target range, velocity, and carrier frequency during coherent accumulation. Existing methods often require substantial computational loads, making them impractical for resource-constrained platforms. This letter proposes a fast high-resolution range profile (HRRP) generation method that eliminates velocity compensation. The key lies in a specially designed waveform that transforms the velocity-related phase into linear phase components. Through the conjugate multiplication of echoes, the linear velocity-related phase is converted into a constant term that enables direct HRRP generation via FFT. Simulations show that the method maintains imaging quality while achieving higher computational efficiency, providing a feasible solution for resource-limited radar platforms.
期刊介绍：
Electronics Letters is an internationally renowned peer-reviewed rapid-communication journal that publishes short original research papers every two weeks. Its broad and interdisciplinary scope covers the latest developments in all electronic engineering related fields including communication, biomedical, optical and device technologies. Electronics Letters also provides further insight into some of the latest developments through special features and interviews.
Scope
As a journal at the forefront of its field, Electronics Letters publishes papers covering all themes of electronic and electrical engineering. The major themes of the journal are listed below.
Antennas and Propagation
Biomedical and Bioinspired Technologies, Signal Processing and Applications
Control Engineering
Electromagnetism: Theory, Materials and Devices
Electronic Circuits and Systems
Image, Video and Vision Processing and Applications
Information, Computing and Communications
Instrumentation and Measurement
Microwave Technology
Optical Communications
Photonics and Opto-Electronics
Power Electronics, Energy and Sustainability
Radar, Sonar and Navigation
Semiconductor Technology
Signal Processing
MIMO
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