PN code tracking using noncommensurate sampling

Author

Quirk, Kevin J. ; Srinivasan, Meera

Author_Institution

Dept. of Electr. & Comput. Eng., California Univ., San Diego, La Jolla, CA

Volume

54

Issue

10

fYear

2006

Firstpage

1845

Lastpage

1856

Abstract

The use of a noninteger symbol to sample time ratio, noncommensurate sampling, in pseudonoise (PN) code-tracking loops is investigated. A noncoherent PN code-tracking loop using noncommensurate sampling and single-bit quantization is presented. An analysis method is developed to characterize the system and determine the steady-state error variance of the timing estimate. The performance of an equivalent analog code-tracking loop is derived and compared with the digital loop to investigate the degradation incurred through sampling and quantization

Keywords

pseudonoise codes; quantisation (signal); signal sampling; spread spectrum communication; analog code-tracking loop; digital loop; noncoherent PN code-tracking loop; noncommensurate sampling; noninteger symbol; pseudonoise code-tracking loops; single-bit quantization; steady-state error variance; time ratio sampling; timing estimation; Analysis of variance; Laboratories; Performance analysis; Propulsion; Quantization; Sampling methods; Signal processing; Signal sampling; Spread spectrum communication; Timing; Code-division multiaccess; global positioning system (GPS); sampling methods; spread-spectrum communication; tracking loops;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/TCOMM.2006.881259

Filename

1710340