Instantaneous CFAR algorithm [spread spectrum receivers]

Author

Cakic, N. ; Glisic, S. ; Krstic, D.

Author_Institution

Inst. of Electr. Eng., VTI-Beograd, Yugoslavia

fYear

1990

fDate

2-5 Dec 1990

Firstpage

275

Abstract

For practical realizations of spread-spectrum receivers, automatic threshold level control (ATLC) in synchronization schemes is crucial. A novel ATLC system is described and analyzed. The system uses a fixed threshold which provides a constant false alarm rate (CFAR) independent of signal to noise ratio variations that may be generated due to impulse noise. The in sync./out of sync. decision variable is formed by using the ratio of the correlation functions of the input signal and two mutually delayed pseudo-noise sequences. Numerical results of the system performance analysis are presented and discussed

Keywords

signal processing; spread spectrum communication; synchronisation; ATLC system; CFAR algorithm; automatic threshold level control; constant false alarm rate; correlation functions; decision variable; impulse noise; input signal; mutually delayed pseudo-noise sequences; signal processing; spread-spectrum receivers; synchronization schemes; Algorithm design and analysis; Delay; Filtering algorithms; Matched filters; Noise generators; Signal analysis; Signal detection; Signal generators; Signal to noise ratio; Spread spectrum communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 1990, and Exhibition. 'Communications: Connecting the Future', GLOBECOM '90., IEEE

Conference_Location

San Diego, CA

Print_ISBN

0-87942-632-2

Type

conf

DOI

10.1109/GLOCOM.1990.116520

Filename

116520