Analysis of CA-CFAR processors for linear-law detection

Author

Raghavan, R.S.

Author_Institution

Dept. of Electr. & Comput. Eng., Northeastern Univ., Boston, MA, USA

Volume

28

Issue

3

fYear

1992

fDate

7/1/1992 12:00:00 AM

Firstpage

661

Lastpage

665

Abstract

A method for evaluating the performance of cell-averaging constant false alarm rate (CA-CFAR) processors which use the amplitude of echo signals rather than their squared amplitude is presented. Results for the case of Rayleigh clutter/noise statistics are given. Detection probabilities are evaluated for the case of a Rayleigh fluctuating target embedded in Rayleigh clutter/noise for linear-law CA-CFAR processors. These results are observed to be practically identical to those of square-law CA-CFAR processors for which analytical expressions are readily available. These observations are verified using Monte Carlo simulations. The same conclusion is reached in the case of a nonfluctuating target embedded in Rayleigh clutter/noise for which only simulation results are presented

Keywords

Monte Carlo methods; probability; radar clutter; radar theory; signal detection; CA-CFAR processors; Monte Carlo simulations; Rayleigh clutter/noise statistics; Rayleigh fluctuating target; cell-averaging constant false alarm rate; detection probability; echo signals; linear-law detection; nonfluctuating target; Computational modeling; Detectors; Noise level; Performance analysis; Probability; Random variables; Signal analysis; Signal processing; Statistical analysis; Statistics; Testing;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/7.256288

Filename

256288