Mean acquisition time for noncoherent PN sequence sequential acquisition schemes

Author

Lam, Alex W. ; Tantaratana, Sawasd

Author_Institution

Dept. of Electr. & Comput. Eng., US Naval Postgraduate Sch., Monterey, CA, USA

Volume

3

fYear

1993

fDate

11-14 Oct 1993

Firstpage

784

Abstract

Sequential PN code acquisition schemes have the potential to achieve the best performance, but they are the least analyzed because of the analytical difficulties. The authors have proposed and investigated (1991-92) the truncated sequential probability ratio test (TSPRT) for spread-spectrum noncoherent PN code acquisition. It was shown to be much better than the conventional fixed sample size (FSS) scheme in the average sample number (ASN) at fixed detection and false-alarm probabilities. For system design purposes, however, the mean acquisition time is more informative. This paper reports results on the mean acquisition time for the TSPRT. Numerical data that includes Rician fading effect is also presented. Results show that the proposed TSPRT is efficient, robust (against fading), fast, and suitable for real-time low-cost implementation

Keywords

Rician channels; fading; flow graphs; military communication; pseudonoise codes; real-time systems; search problems; sequential codes; statistical analysis; synchronisation; Rician fading; mean acquisition time; noncoherent PN code acquisition; sequential acquisition schemes; truncated sequential probability ratio test; Fading; Frequency selective surfaces; Hardware; Performance analysis; Random variables; Rician channels; Robustness; Sequential analysis; Spread spectrum communication; Uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

Military Communications Conference, 1993. MILCOM '93. Conference record. Communications on the Move., IEEE

Conference_Location

Boston, MA

Print_ISBN

0-7803-0953-7

Type

conf

DOI

10.1109/MILCOM.1993.408712

Filename

408712