Title :
Real-time GPS Software Receiver Correlator Design
Author :
Tian, Jin ; Honglei, Qin ; JunJie, Zhu ; Yang, Liu
Author_Institution :
BeiHang Univ., Beijing
Abstract :
In this paper, we present a real-time GPS software receiver design and implementation with 12 channels using software correlator. A special equal-length CA code correlation method is introduced to increase the performance of real-time signal processing efficiency. The result is tested by real GPS signal data with 12 MHz sampling under Pentium/AMD CPU, and more simulation test is done in DSP development platform. By comparison with other software correlator, the new scheme only use 1/2 memory and can procedure 20% speed improvement, 1/3 signal power lost.
Keywords :
Global Positioning System; correlators; radio receivers; software radio; CA code correlation; DSP development platform; real-time GPS software receiver; real-time signal processing; sampling; software correlator; Computer architecture; Correlators; Frequency; Global Positioning System; Receivers; Satellite broadcasting; Signal processing algorithms; Software design; Software performance; Software radio; Software defined radio; real-time GPS receiver; software correlator;
Conference_Titel :
Communications and Networking in China, 2007. CHINACOM '07. Second International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1009-5
Electronic_ISBN :
978-1-4244-1009-5
DOI :
10.1109/CHINACOM.2007.4469450
