Design and implementation of portable GNSS baseband logger

Author

Wang Sheng ; Chen Pei ; Han Chao

Author_Institution

Sch. of Astronaut., Beijing Univ. of Aeronaut. & Astronaut., Beijing, China

fYear

2009

fDate

8-11 Aug. 2009

Firstpage

642

Lastpage

646

Abstract

The design and the implementation of a portable GNSS baseband logging system which can log raw GPS L1 baseband more than one hour or longer is presented. In addition, the design covers GPS (L1, L2)/GLONASS/Galileo/Compass frequency and the maximal sample frequency is about 50 MHz.The system is based on Blackfin DSP and uses CompactFlash card for storage. The data is extracted by reading the CompactFlash card to store as a data file. The recorded data file is analyzed by using the FFT to acquire the GPS satellites signals and the position is calculated by using the open source GPS positioning software. The system is very portable because of the CF+DSP design and can also be used on missile and satellite. It provides a good research and development platform for the GNSS software receiver.

Keywords

Global Positioning System; data recording; digital signal processing chips; fast Fourier transforms; flash memories; public domain software; telecommunication computing; Blackfin DSP; CF+DSP design; CompactFlash card; Compass frequency; FFT; GLONASS; GNSS software receiver; GPS L1 baseband; GPS satellites signal; Galileo; missile; open source GPS positioning software; portable GNSS baseband logging system; Baseband; Data analysis; Data mining; Digital signal processing; Frequency; Global Positioning System; Missiles; Open source software; Satellite navigation systems; Signal analysis; Baseband Logger; Global Positioning System; Logging; Portable; Software Radio;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Science and Information Technology, 2009. ICCSIT 2009. 2nd IEEE International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-4519-6

Electronic_ISBN

978-1-4244-4520-2

Type

conf

DOI

10.1109/ICCSIT.2009.5234778

Filename

5234778