Adaptive Vector Delay Lock Tracking Loops GPS Signal over Multipath Fading Channels

被引：1
|
作者：
Wu, Jia-Chyi [1 ]
Jwo, Dah-Jing [1 ]
Chien, Chi-Yang [1 ]
机构：
[1] Natl Taiwan Ocean Univ, Dept Commun Control & Nav Engn, Keelung, Taiwan
来源：
PROCEEDINGS OF THE 2017 INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND APPLICATIONS (WCNA2017) | 2017年
关键词：
GPS; Vector delay-lock loop (VDLL); Signal outage; Receiver autonomous integrity monitoring (RAIM); Extended Kalman filter (EKF); Multipath fading channel; PERFORMANCE;
D O I：
10.1145/3180496.3180631
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
(1)The satellite transmits carrier signal to Global Positioning System (GPS) receivers suffered signal degradation in varied environmental conditions, from space through atmosphere to ground, especially due to the effects of multipath fading. In order to investigate the error performance of GPS signal transmission over multipath fading situations, a vector delay-locked tracking loop structure is applied to GPS receiver with the support of the Kalman filtering algorithms in this paper. The vector delay-locked tracking loop system is supported with receiver autonomous integrity monitoring (RAIM) and fault detection and exclusion (FDE) algorithm to prevent signal unlocked situation. Simulations of the satellite signal to GPS receiver over the multipath fading noise are investigated under three channel conditions: the additive Gaussian white noise (AWGN), Rayleigh fading noise, and Rician fading noise. The extended Kalman filter (EKF) algorithm is applied to improve the system performance. Analysis for various combinations of the above mentioned algorithms is studied and compared.
引用
收藏
页码：194 / 198
页数：5
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