Title :
PN code tracking loop with extended Kalman filter for a direct-sequence spread-spectrum system
Author_Institution :
Dept. of Radio Sci. & Eng., Kwangwoon Univ., Seoul, South Korea
Abstract :
In this paper, a PN code tracking loop with extended Kalman filter (EKF) is proposed for a direct-sequence spread-spectrum. EKF is used to estimate amplitude and delay in a multipath fading channel. It is shown that tracking error performance is significantly improved by EKF compared with a conventional tracking loop.
Keywords :
Kalman filters; Rayleigh channels; amplitude estimation; channel estimation; delay lock loops; multipath channels; pseudonoise codes; spread spectrum communication; tracking filters; EKF; PN code tracking loop; amplitude estimation; delay estimation; direct-sequence spread-spectrum; extended Kalman filter; multipath fading channel; tracking error; Amplitude estimation; Delay estimation; Fading; Filters; Frequency; Gaussian noise; Mobile communication; Spread spectrum communication; State estimation; Tracking loops;
Conference_Titel :
Industrial Electronics Society, 2004. IECON 2004. 30th Annual Conference of IEEE
Print_ISBN :
0-7803-8730-9
DOI :
10.1109/IECON.2004.1432221
