CFAR performance analysis of a phase-coded pulse compression system with hard limiter

Author

Huan, Wu ; Yajun, Wang ; Maocang, Liu

Author_Institution

Electron. Inst., Xidian Univ., Xi´´an, China

fYear

1996

fDate

8-10 Oct 1996

Firstpage

409

Lastpage

412

Abstract

It is taken for granted in engineering that a phase-coded compression system with a hard limiter and an integrator possesses naturally of constant false alarm rate (CFAR). In this paper, however, it is shown by theoretical analysis that the CFAR can not generally be guaranteed for the system. In clutter environments, the CFAR feature of the system is violated due to the correlation of clutter residuals and can be recovered by additional decorrelating processing. The probability distribution of the sum of squares of a number of correlated Gaussian random variables is derived and a necessary and sufficient condition for the CFAR of the system is presented. This can serve as a guideline for radar engineering design. Simulation experiments support the analytical results

Keywords

Gaussian processes; correlation methods; encoding; limiters; pulse compression; radar clutter; radar signal processing; random processes; CFAR performance analysis; clutter environments; clutter residuals; constant false alarm rate; correlated Gaussian random variables; correlation; decorrelating processing; hard limiter; integrator; phase-coded pulse compression system; probability distribution; radar engineering design; sum of squares; Clutter; Decorrelation; Design engineering; Guidelines; Performance analysis; Probability distribution; Pulse compression methods; Radar; Random variables; Sufficient conditions;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar, 1996. Proceedings., CIE International Conference of

Conference_Location

Beijing

Print_ISBN

0-7803-2914-7

Type

conf

DOI

10.1109/ICR.1996.574480

Filename

574480