Title :
Weber-Haykin based Automatic Censoring and detection in Weibull background
Author :
Chabbi, Souad ; Laroussi, Toufik ; Barkat, Mourad
Author_Institution :
Dept. d´´Electron., Univ. Constantine, Constantine, Algeria
Abstract :
In this paper, we study the problem of automatic target detection in Weibull clutter and multiple target situations, without any prior knowledge of neither the non-stationary clutter statistics in which the radar operates nor the number of outliers that may be present in the reference window. In doing this, we develop the Forward/Backward Order Statistic Automatic Censoring and Detection Constant False Censoring and Alarm Rates Detectors based upon the Weber-Haykin adaptive threshold (WH-based F/B-OSACD-CFCAR). These detectors select repeatedly a suitable set of ranked cells among reference cells surrounding the cell under test to estimate the unknown background level and set the adaptive threshold, accordingly. The censoring and detection performances are evaluated by means of Monte Carlo simulations.
Keywords :
Weibull distribution; clutter; Monte Carlo simulation; Weber-Haykin adaptive threshold; Weber-Haykin based automatic censoring; Weber-Haykin based automatic detection; Weibull background; Weibull clutter; alarm rate detector; automatic target detection; detection constant false censoring; forward/backward order statistic automatic censoring; multiple target situation; nonstationary clutter statistics; reference window; Algorithm design and analysis; Clutter; Detectors; Monte Carlo methods; Radar clutter; Thyristors; Weber-Haykin threshold; backward; censoring; detection; forward;
Conference_Titel :
Signal Processing (ICSP), 2010 IEEE 10th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-5897-4
DOI :
10.1109/ICOSP.2010.5655329