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Sea clutter characterisation & small target detection in maritime surveillance radar

Chidambaram, Nadaraj (2005) Sea clutter characterisation & small target detection in maritime surveillance radar. Masters thesis, Universiti Teknologi Malaysia, Faculty of Electrical Engineering.

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Abstract

Maritime surveillance radar experiences serious limitations imposed on their performance by unwanted sea clutter. Sea clutter limits the performance of the radar, so it is vital to understand the characteristics of sea clutter to improve the performance in detecting small targets. A detail analysis of experimental live recorded radar data collected at Port Hanstholm, Denmark with Terma Scanter X band Radar was used to test the theoretical and experimental models developed by many researches on sea clutter. The amplitude video voltage of collected digitized raw video consisting of targets and clutter of each radar sweep were measured and analyzed. The histogram from the collected samples of echo returns were plotted, a comparison of the amplitude histograms with Gaussian and Rayleigh distributions were done. The analysis of the recorded amplitude histogram has demonstrated for high resolution with low grazing angle and using horizontal polarization the data distribution fits the log normal distribution. The study concludes the statistics of sea clutter vary with polarization, resolution cell size, sea state and wind conditions.

Item Type:Thesis (Masters)
Additional Information:Thesis (Master of Engineering (Electrical-Electronic and Telecommunication)) - Universiti Teknologi Malaysia, 2005; Supervisor : Assoc. Prof. Dr. Ahmad Zuri Sha’ameri
Uncontrolled Keywords:radar, maritime surveillance, sea clutter, clutter, target detection
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:5060
Deposited By: Ms Zalinda Shuratman
Deposited On:28 Mar 2008 09:09
Last Modified:08 Aug 2012 08:08

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