Title :
Fast acquisition implementation and analysis with multi-channel search on FPGA for GNSS systems
Author :
Feng, Zeming ; Yao, Rugui ; Wang, Ling ; Huang, Dengshan
Author_Institution :
Sch. of Electron. & Inf., Northwestern Polytech. Univ., Xi´´an, China
Abstract :
The acquisition of pseudorandom noise code (PN code) plays an important part in the Spread Spectrum Communication System. It is found that the combination of multi-parallel channels and FFT is faster than the traditional serial-search and parallel-frequency search algorithm through the result of simulation. The algorithm fully utilizes multiple parallel channels to accelerate the acquisition of chip phase and adopts the method of FFT to obtain the Doppler frequency rapidly.
Keywords :
fast Fourier transforms; field programmable gate arrays; pseudonoise codes; satellite navigation; spread spectrum communication; Doppler frequency; FPGA; GNSS systems; chip phase; fast Fourier transform; fast acquisition implementation; multichannel search; multiparallel channels; multiple parallel channel; pseudorandom noise code acquisition; spread spectrum communication system; Clocks; Doppler effect; Field programmable gate arrays; Frequency domain analysis; MATLAB; Satellite navigation systems; Satellites; FFT; FPGA; PN code; acquisition;
Conference_Titel :
Signal Processing, Communication and Computing (ICSPCC), 2012 IEEE International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4673-2192-1
DOI :
10.1109/ICSPCC.2012.6335691
