Title :
Analysis and comparison of GNSS code tracking with different discriminators
Author :
Zhang, X. ; Xu, H.L. ; Zhan, X.Q.
Author_Institution :
Sch. of Aeronaut. & Astronaut., Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
Code tracking is an indispensible operation of a Global Navigation Satellite System (GNSS) receiver. This paper provides analytical expressions for tracking loop performances using quasi-coherent dot product discriminator under small error conditions. Expressions are derived for root mean squared tracking error for arbitrary Signal-in-Space (SIS) spectra, Gaussian noise and non-white interference. Theoretical expressions are compared with previous work and numerical results are provided to examine the effect of different discriminators, SIS modulation designs and types of interference.
Keywords :
Gaussian noise; discriminators; mean square error methods; radiofrequency interference; satellite navigation; GNSS code tracking analysis; Gaussian noise; SIS modulation designs; global navigation satellite system receiver; nonwhite interference; quasicoherent dot product discriminator; root mean squared tracking error; signal-in-space spectra; Cramér-Rao lower bound; GNSS; code-tracking; dot product; root mean squared tracking error;
Conference_Titel :
Wireless Mobile and Computing (CCWMC 2011), IET International Communication Conference on
Conference_Location :
Shanghai
DOI :
10.1049/cp.2011.0838
