MMSE delay acquisition of pulse-shaped signals in satellite navigation systems

Author

Sirbu, Marius ; Delfino, Eugenio ; Koivunen, Visa

Author_Institution

Signal Process. Lab., Helsinki Univ. of Technol., Espoo, Finland

Volume

6

fYear

2004

fDate

26-29 Sept. 2004

Firstpage

4071

Abstract

We propose a novel code delay acquisition method for long-code satellite navigation systems. The transmitted signal is assumed to be pulse-shaped with a band-limited filter. The delay acquisition is performed by minimizing the mean square error (MSE) between the received signal and a locally generated replica of the spreading code. The proposed method is able to estimate fractional delays from a chip rate sampled received signal and has robust performance in the face of multipath propagation.

Keywords

code division multiple access; delay estimation; least mean squares methods; minimisation; multipath channels; satellite navigation; signal sampling; spread spectrum communication; DS-CDMA; MMSE; band-limited filter; chip rate; code delay acquisition method; fractional delay estimation; long-code satellite navigation systems; minimum mean square error; multipath propagation; pulse-shaped signals; signal sampling; spreading code replica; Delay estimation; Filters; Global Positioning System; Interference; Propagation delay; Pulse shaping methods; Robustness; Satellite navigation systems; Signal generators; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th

ISSN

1090-3038

Print_ISBN

0-7803-8521-7

Type

conf

DOI

10.1109/VETECF.2004.1404843

Filename

1404843