Title :
Direct P-code Acquisition Based on FFT
Author :
Baowang, Lian ; Na, Cao
Author_Institution :
Depts. of Electr. & Electron. Eng., Northwestern Polytech. Univ., Xi´´an
Abstract :
This paper is a brief study of the global positioning system (GPS) P-code acquisition based on FFT. P-code has a higher chipping rate, better accuracy and anti-jamming property than C/A code. When C/A code is not available, direct P-code acquisition is useful. In this paper, the implementation on FPGA and DSP board proves that the technique using FFT (fast Fourier transform) has greatly reduced the acquisition times and calculations.
Keywords :
Global Positioning System; digital signal processing chips; fast Fourier transforms; field programmable gate arrays; satellite communication; C/A code; DSP; FFT; FPGA; GPS; fast Fourier transform; global positioning system; p-code acquisition; Digital signal processing chips; Fast Fourier transforms; Field programmable gate arrays; Frequency; Global Positioning System; Phase estimation; Phase modulation; Phase noise; Satellite broadcasting; Satellite navigation systems;
Conference_Titel :
Communication Technology, 2006. ICCT '06. International Conference on
Conference_Location :
Guilin
Print_ISBN :
1-4244-0800-8
Electronic_ISBN :
1-4244-0801-6
DOI :
10.1109/ICCT.2006.341999
