Generalized and average post detection integration methods for code acquisition

Author

Corazza, Giovanni Emanuele ; Pedone, Raffaella

Author_Institution

Bologna Univ., Italy

fYear

2004

fDate

30 Aug.-2 Sept. 2004

Firstpage

207

Lastpage

211

Abstract

In the context of spread spectrum systems, the paper focuses on post detection integration (PDI) for code acquisition in the presence of a frequency error. The PDI scheme is obtained through the theoretical likelihood ratio test (LRT) computation, and two approaches are considered: the generalized LRT, in the form of the special case STML-PDI (single term maximum likelihood-PDI); the average LRT (A2LLRT). The methods are developed in the AWGN channel but are applicable to fading channels, too. Possible applications are in cellular CDMA networks and in satellite navigation and positioning systems.

Keywords

AWGN channels; fading channels; integration; signal detection; spread spectrum communication; AWGN channel; cellular CDMA networks; code acquisition; fading channels; frequency error; generalized LRT; generalized likelihood ratio test; likelihood ratio test; positioning systems; post detection integration methods; satellite navigation; signal acquisition; single term maximum likelihood; spread spectrum systems; Delay; Fading; Frequency; Light rail systems; Multiaccess communication; Satellite broadcasting; Satellite navigation systems; Spread spectrum communication; Testing; Uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

Spread Spectrum Techniques and Applications, 2004 IEEE Eighth International Symposium on

Print_ISBN

0-7803-8408-3

Type

conf

DOI

10.1109/ISSSTA.2004.1371693

Filename

1371693