Core Concepts
Wilcoxon Nonparametric CFAR Scheme improves ship detection in SAR images compared to parametric CFAR schemes.
Abstract
The article discusses the Wilcoxon Nonparametric CFAR Scheme for ship detection in SAR images. It compares the performance of this scheme with parametric CFAR schemes like the two-parameter CFAR, Weibull CFAR, and TS-CFAR. The study analyzes the detection results on different SAR images, including Radarsat-2, ICEYE-X6, and Gaofen-3, under various false alarm rates. It also evaluates the time cost of each detection scheme and highlights the advantages of the Wilcoxon Nonparametric CFAR Scheme in maintaining a constant false alarm rate and suppressing false alarms from sidelobes.
I. Introduction
Synthetic Aperture Radar (SAR) applications for ship detection.
Importance of constant false alarm rate (CFAR) schemes.
II. Wilcoxon Nonparametric CFAR Scheme
Proposal and analysis of the Wilcoxon nonparametric CFAR scheme.
Description of the detection method using a sliding window technique.
Comparison with parametric CFAR schemes on different SAR images.
III. Experimental Results and Performance Analysis
Performance comparison of Wilcoxon nonparametric CFAR with parametric CFAR schemes.
Detection results on SAR images from Radarsat-2, ICEYE-X6, and Gaofen-3.
Evaluation of false alarm rates and detection effectiveness.
Stats
Die Wilcoxon nichtparametrische CFAR-Schema kann eine konstante Fehlalarmrate beibehalten.
Die Wilcoxon nichtparametrische Methode verwendet ein Testfenster von 2x2 Pixeln.
Die Wilcoxon nichtparametrische Methode zeigt eine bessere Detektionsleistung als die Weibull CFAR.
Quotes
"Die Wilcoxon nichtparametrische Methode kann die Fehlalarme, die durch die Seitenlappen des Schiffskörpers verursacht werden, in gewissem Maße unterdrücken."
"Die Fehlalarmrate der Wilcoxon nichtparametrischen CFAR-Methode ist unabhängig von der Hintergrundclutter-Verteilung."