A simple expression for the optimization of spread-spectrum code acquisition detectors operating in the presence of carrier-frequency offset

Author

Diez, José ; Pantaleón, Carlos ; Vielva, Luis ; Santamaría, Ignacio ; Ibáñez, Jesús

Author_Institution

Commun. Eng. Dept., Univ. de Cantabria, Santander, Spain

Volume

52

Issue

4

fYear

2004

fDate

4/1/2004 12:00:00 AM

Firstpage

550

Lastpage

552

Abstract

In this letter, we present a simple expression for the optimization of the threshold detection performance for direct-sequence spread-spectrum code acquisition in the presence of carrier-frequency offset. The proposed scheme divides the total integration time into subintervals, and the results of the coherent integrations performed over these subintervals are noncoherently combined prior to detection. The proposed expression allows obtaining the optimum number of coherent-integration subintervals for a given total integration time.

Keywords

optimisation; signal detection; spread spectrum communication; statistical analysis; carrier-frequency offset; code acquisition detectors; direct sequence spread spectrum; optimization; threshold detection performance; AWGN; Detectors; Doppler shift; Frequency synchronization; Oscillators; Probability; Spread spectrum communication; Statistical analysis; Testing; Uncertainty;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/TCOMM.2004.826345

Filename

1291794