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A DBZP Acquisition Method for High-Dynamic and Weak GPS Signal Aided by SINS

  • Junshuai Wang*
  • , Xinlong Wang
  • , Fei Liu
  • , Xiaoming Hao
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In order to enhance the acquisition performance in high-dynamic and weak GPS signal conditions, a Double Block Zero Padding (DBZP) acquisition method based on SINS is presented. In the method, the GPS doppler frequency estimated by SINS decreases the range of frequency uncertainty; the doppler rate and code doppler aided from SINS overcomes the energy diffusion caused by the receiver’s dynamic, and the energy based navigation data bits estimation method expands coherent integration time. All of them make the acquisition faster and higher sensitivity in high-dynamic and weak conditions. At last, the re-acquisition experiments of weak signal in high-dynamic environment are conducted, and the simulation results show that the proposed method can acquire high-dynamic and weak signal effectively.

Original languageEnglish
Title of host publicationChina Satellite Navigation Conference, CSNC 2021, Proceedings
EditorsChangfeng Yang, Jun Xie
PublisherSpringer Science and Business Media Deutschland GmbH
Pages336-346
Number of pages11
ISBN (Print)9789811631412
DOIs
StatePublished - 2021
Event12th China Satellite Navigation Conference, CSNC 2021 - Nanchang, China
Duration: 22 May 202125 May 2021

Publication series

NameLecture Notes in Electrical Engineering
Volume773 LNEE
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

Conference12th China Satellite Navigation Conference, CSNC 2021
Country/TerritoryChina
CityNanchang
Period22/05/2125/05/21

Keywords

  • DBZP
  • High-dynamic and weak signal
  • Navigation bits estimation
  • SINS
  • Signal acquisition

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