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A New Technique for Doppler Frequency Compensation and Estimation for High-speed Targets in Phase-Coded Radars
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  • Alaa Zahra,
  • Wael Mehany,
  • Fathy Ahmed,
  • Ahmed Yousef,
  • Mostafa Abdallah,
  • julien le kernec
Alaa Zahra
Military Technical College
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Wael Mehany
Military Technical College
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Fathy Ahmed
Military Technical College
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Ahmed Yousef
Military Technical College
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Mostafa Abdallah
University of Glasgow

Corresponding Author:mostafa.el89@ieee.org

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julien le kernec
University of Glasgow
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Abstract

Moving targets are a real threat to pulse compression radars, especially those operating with Doppler-intolerant waveforms. As the Doppler frequency increases, the radar system performance degrades accordingly. In the case of high-speed targets, the Doppler frequency is high enough to distort the received signal, and consequently, the matched filter output is distorted. Therefore, no target information could be extracted. In this paper, we introduce a new Doppler compensation (DC) and estimation technique for phase-coded pulse compression radars to allow the detection of high-speed targets. Moreover, their Doppler frequency value is estimated without ambiguity from one burst and without the need for a range-Doppler module. In addition, the proposed method does not require a synchronization system to perform its function. As such, the implementation of the proposed method is simple and inexpensive. The performance evaluation of the new method shows its superiority in compensation and estimation when examined under higher Doppler frequency and noise compared to a conventional radar.
04 Feb 2023Submitted to Electronics Letters
05 Feb 2023Assigned to Editor
05 Feb 2023Submission Checks Completed
27 Feb 2023Reviewer(s) Assigned