Improved acquisition method of the high dynamic spread spectrum signals

Home > Archive>Volume 38, Issue 9, 2015 >116-120

Improved acquisition method of the high dynamic spread spectrum signals
DOI:
                        
                    
CSTR:
                        [cstr]
                    
Author:
                        Huang JianHuang Jian
1.Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190, China; 2.University of Chinese Academy of Sciences, Beijing 100190, China
Find this author on All Journals
Find this author on BaiDu
Search for this author on this site
Zhang Dehai1Zhang Dehai
Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190, China
Find this author on All Journals
Find this author on BaiDu
Search for this author on this site
Meng JinMeng Jin
1.Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190, China; 2.University of Chinese Academy of Sciences, Beijing 100190, China
Find this author on All Journals
Find this author on BaiDu
Search for this author on this site
Yan DashuaiYan Dashuai
1.Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190, China; 2.University of Chinese Academy of Sciences, Beijing 100190, China
Find this author on All Journals
Find this author on BaiDu
Search for this author on this site

                    
Affiliation:1.Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190, China; 2.University of Chinese Academy of Sciences, Beijing 100190, China
Clc Number:TN914.42
Fund Project:

Article

Figures

Metrics

Reference

Cited by

Materials

Comments

Abstract:

Traditional PN code acquisition algorithm is effectless for high dynamic Doppler shift signals.This paper presents acquisition methods based on FFT . It considers Doppler frequency change rate in high dynamic environment and improves the model of the received signal. It divides traditional twodimensional search algorithm into the separate estimation of Doppler frequency offset and frequency change rate as well as pseudocode phase. The complexity and signaltonoise ratio of Doppler frequency shift estimation method, Matching Fourier Transform and Delay Selfcorrelation, and code phase circular correlation estimation method are analysed and improved. The simulation by using MATLAB verifies that the algorithm is correct and effective.

Key words:FFT; high dynamic; Doppler frequency shift; PN code acquisition

Get Citation

Copy

Article Metrics

Abstract:1145
PDF: 1812
HTML: 0
Cited by: 0

History

Received:
Revised:
Adopted:
Online: May 27,2016
Published:

Home

Introduction

Editorial Committee

Policy

Contact Us

中文版

Get Citation

Share

Article Metrics

History

Article QR Code