Research of Direct P-code Acquisition Based on FFT

ZHOU  Taoyun; CAI  Chenglin; ZHANG  Yi; LIAN  Baowang

doi:10.15892/j.cnki.djzdxb.2010.02.055

Journal of Projectiles, Rockets, Missiles and Guidance >

2010 , Vol. 30 >Issue 2: 215 - 217,220

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2010.02.055

CORRELATION TECHNOLOGY

Research of Direct P-code Acquisition Based on FFT

ZHOU Taoyun ,
CAI Chenglin ,
ZHANG Yi ,
LIAN Baowang

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¹ Hunan Institute of Humanities Science and Technology, Hunan Loudi 417000, China
² School of Electronics and Information, Northwestern Polytechnical University, Xi'an 710072, China

Received date: 2009-05-28

Online published: 2025-05-28

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Abstract

In order to increase positioning accuracy and meet the application where C/A code is unavailable, the direct P-code acquisition is useful. A fast P-code acquisition in GPS based on FFT was proposed and its performance was analyzed. The simulation and analysis results show, compared with conventional slipping correlation method, the capturing time of this fast P-code acquisition method is reduced more times, and the calculation is also reduced greatly. It has reference value for the other direct long pseudo random noise (PRN) code acquisition.

Key words： global positioning system (GPS); direct P-code acquisition; FFT; pseudo random noise (PRN) code

Cite this article

ZHOU Taoyun , CAI Chenglin , ZHANG Yi , LIAN Baowang . Research of Direct P-code Acquisition Based on FFT[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2010 , 30(2) : 215 -217,220 . DOI: 10.15892/j.cnki.djzdxb.2010.02.055

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