Title :
OS-CFAR theory for multiple targets and nonuniform clutter
Author_Institution :
Analytic Associates Ltd., Cwmbran, UK
fDate :
11/1/1988 12:00:00 AM
Abstract :
The performance of a cell averaging constant false-alarm rate (CA-CFAR) detector degrades rapidly in nonideal conditions caused by multiple targets and nonuniform clutter. The ordered-statistic CFAR (OS-CFAR) is an alternative to the CA-CFAR. The OS-CFAR trades a small loss in detection performance relative to the CA-CFAR in ideal conditions for much less performance degradation in nonideal conditions. A formula is given for the detection probability of the OS-CFAR when there are multiple Swerling I targets in the CFAR window, and a formula is given for the probability of false alarm in nonuniform Raleigh clutter
Keywords :
probability; radar clutter; signal detection; statistics; constant false-alarm rate; detection probability; multiple Swerling I targets; nonuniform Raleigh clutter; ordered-statistic CFAR; Aerospace testing; Degradation; Detectors; Performance analysis; Performance loss; Probability; Signal design; Signal to noise ratio; Statistics; Threshold voltage;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
