Jitter performance of a baseband sampled code tracking loop

Author

Kallman, Kurt ; Davis, George

Author_Institution

Commun. Div., Motorola Inc., Scottsdale, AZ, USA

Volume

42

Issue

11

fYear

1994

fDate

11/1/1994 12:00:00 AM

Firstpage

2919

Lastpage

2925

Abstract

The purpose of this paper is to investigate the steady-state tracking performance of a digital baseband noncoherent code tracking loop in the presence of additive white Gaussian noise (AWGN). The delay-locked loop (DLL) structure is evaluated. Particular areas of concern are the effect of carrier frequency uncertainty, branch filter bandwidth and loop filter bandwidth. For a fixed data rate, code chip rate and signal-to-noise ratio there is an optimum length for the digital branch filters which minimizes the tracking jitter

Keywords

codes; delays; discriminators; random noise; spread spectrum communication; white noise; AWGN; DLL; additive white Gaussian noise; baseband sampled code tracking loop; branch filter bandwidth; carrier frequency uncertainty; code chip rate; delay-locked loop; digital baseband tracking loop; direct sequence spread spectrum; discriminator; fixed data rate; jitter performance; loop filter bandwidth; noncoherent code tracking loop; pseudonoise sequence; signal-to-noise ratio; steady-state tracking performance; timing jitter; AWGN; Additive white noise; Bandwidth; Baseband; Delay; Filters; Frequency; Jitter; Steady-state; Tracking loops;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.328970

Filename

328970