Coherent Linear Detection of Slow Fluctuating Radar Targets in a K-Distributed Clutter

Abstract

A method was proposed in this paper for detecting radar targets in sea clutter by solving the composite hypothesis testing for the quasi-optimum detector. The quasi-optimal detector and the sea clutter distribution were assumed to be coherent and based on the K-model. A linear model was proposed based on these assumptions and the generalized likelihood ratio test (GLRT) to compare the detector, outputs after mathematical calculations and approximations. The purpose of this paper was to provide a practical method for the implementation of a detector to reduce the burden of mathematical calculations. Computerized simulations demonstrated the favorable performance of the proposed model.

KEYWORDS:

• Coherent radar detection
• GLRT
• K-distributed
• Linear detection
• Quasi-optimal detector
• Sea clutter

Additional information

Notes on contributors

V. Afsharnaderi

V Afsharnaderi was born in Shiraz, Iran, in 1983. He received the BSc degree in telecommunications engineering from the University of Applied Science and Technology, ITI Center, Shiraz, Iran, in 2007, and MSc degree from the Islamic Azad University Shiraz Branch, Shiraz, Iran, in 2018. His current research interests include signal processing, wireless communication, and radar signal and data processing. E-mail: [email protected]

N. Parhizgar

N Parhizgar was born in Shiraz, Iran in 1968. He received the PhD degree in electrical engineering, from Islamic Azad University Science and Research Branch, Tehran, Iran, in 2013. Since 2008, he has been with the Electrical Engineering Department, Islamic Azad University Shiraz Branch, where he holds an assistant professor position. His current interests include: array processing, applications of numerical electromagnetics to adaptive signal processing and radar signal and data processing. He has authored and coauthored more than 70 publications in different conferences and journals. Corresponding author. E-mail: [email protected]

A. Mosalehe

A Mosalehe was born in Shiraz, Iran, in 1980. He received the BSc degree in telecommunications engineering from the Islamic Azad University Bushehr branch, Bushehr, Iran, in 2004, and MSc degree from the University of Shiraz, Shiraz, Iran, in 2010. He is currently a PhD student at the Islamic Azad University Shiraz, Shiraz, Iran. His current research interests include mobile systems, data communication, and radar signal processing. E-mail: [email protected]