Proposing an Iterative Method Based on Constant False Alarm Rate for Detecting Long Radar Targetsin the Presence of Heavy Sea Clutter

Document Type : Research Paper

Authors

1 Faculty of Electrical and Computer Engineering, Babol Noshirvani University of Technology, Babol, Iran

2 Faculty of Engineering and Technology, University of Mazandaran, Babolsar, Iran

Abstract

The principal aim of utilizing maritime surveillance radar systems is to radar target detection (RTD) in the maritime setting, and to make informed decisions regarding their presence or absence. Numerous techniques have been put forth for the detection of radar targets, with constant false alarm rate (CFAR) methods serving as the most extensively accepted and prevalent. However, Despite the good performance exhibited by the previously mentioned methods in detecting narrow (impulsive) targets, the high amplitude of several successive range-gates renders them incapable of detecting long targets. In this article, an iterative recurrent method founded on the smallest cell of the constant false alarm rate (ISO-CFAR) has been proposed, which enables the detection of long radar targets. To achieve this, range gates produced by each radar processing are regarded as the input for CA, GO, SO, and proposed ISO CFAR and the performance of the aforementioned detectors is assessed and contrasted for detecting the start, end, and length of the target cells. The results reveal a noteworthy enhancement in the probability of detecting target cells through the use of the proposed CFAR detector as compared to the aforementioned CFAR detectors that are commonly employed in radar systems.

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References

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Journal of Modeling in Engineering
Volume 23, Special Issue 81
Celebrating the 50th Anniversary of Semnan University- In Progress
July 2025
Pages 249-263

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History

  • Receive Date: 07 May 2024
  • Revise Date: 20 September 2024
  • Accept Date: 25 September 2024

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