Journal of Advanced Navigation Technology (한국항행학회논문지)

The Korean Navigation Institute (한국항행학회)
권호 표지

A Study on the Implementation and Performance Analysis of Software Based GPS L1 and Galileo E1/E5a Signal Processing

소프트웨어 기반의 GPS L1 및 갈릴레오 E1/E5a 신호 처리 구현 및 성능에 관한 연구

  • Sin, Cheon-Sig (Department of Electronics Computer Engineering, Hanyang University) ;
  • Lee, Sang-Uk (Satellite Control & Navigation Research Team, ETRI) ;
  • Yoon, Dong-Won (Department of Electronics Computer Engineering, Hanyang University) ;
  • Kim, Jae-Hoon (Satellite Control & Navigation Research Team, ETRI)
  • 신천식 (한양대학교 전자컴퓨터통신 공학과) ;
  • 이상욱 (한국전자통신연구원 위성관제.항법연구팀) ;
  • 윤동원 (한양대학교 전자컴퓨터통신 공학과) ;
  • 김재훈 (한국전자통신연구원 위성관제.항법연구팀)
  • Received : 2009.04.30
  • Accepted : 2009.06.30
  • Published : 2009.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, the key technologies of Navigation receiver for GNSS sensor station are presented as a development result of a GNSS ground station in ETRI. A wide-band antenna and RF/IF components and SW signal processing unit to cover the GPS and Galileo signals for GNSS receiver are developed and its performance is verified by using GPS live signal and GNSS RF signal simulator from SpirentTM. We also gather GIOVE-A signal by using H/W antenna and RF/IF units in IF-level as sampling frequency and bit number, 112MHz and 8bits, respectively by using the developed wide-band antenna and RF/IF components. Data acquisition is done by using commercial data acquisition device from National Instrument TM. The gathered data is fed into SW receiver to process Galileo E1 to verify Galileo signal processing by Galileo live signal from GIOVE-A.

본 논문에서는 위성항법신호감시국용 GPS/갈릴레오 복합 수신기에서의 소프트웨어 기반의 GPS L1 및 갈릴레오 E1/E5a 신호처리 결과를 기술한다. 성능 검증을 위해 GNSS RF 신호 시뮬레이터 또는 GPS 위성의 실제 신호를 사용하였고, 세부적으로는 광대역 안테나, 112MHz 샘플링 주파수 및 8비트 양자화 레벨을 제공하는 RF/IF 유니트를 이용하여 갈릴레오 시험위성인 지오베-A(GIOVE-A) E1 신호처리를 통해, 갈릴레오 신호처리를 검증하고, FPGA 기반의 신호처리 보드상에서의 시험결과를 제시한다.

Keywords

References

  1. Kaplan, Elliot D., "Understanding GPS: Principles and Applications" Artech House, 2006
  2. Van Nee, J.R. & Coenen, J.R.M., "New Fast GPS Code-Acquisition Technique Using FFT," Electronics Letters, Vol.27.2 Jan., 1991
  3. James BAO-YEN TSUI, "Fundamentals of Global Positioning System Receivers A Software Approach.
  4. Manandhar, D., Y. Suh R. Shibasaki, "GPS Signal Acquisition and Tracking -An Approacb towards Development of Software-based GPS Receiver," Technical Report of IEICE, ITS2004, July 16, 2004
  5. Cbeon Sig SIN, "A Software Receiver lmplemenation for GPS L1 and Galileo E1 Signal", pp. 46-58, Vol 1, ASMS 2008.
  6. K. Borre, D. M. Akos, N. Bertelsen, P. Rinder, S. H. Jensen, "A Software-Defined GPS and Galileo Receiver," Birkhauser Boston, 2007