Design of data acquisition and predictive filtering system for RLG POS

Author

Dongkun, Yan ; Maiying, Zhong ; Jianli, Li

Author_Institution

Sch. of Instrum. Sci. & Opto-Electron. Eng., Beijing Univ. of Aeronaut. & Astronaut., Beijing, China

fYear

2011

fDate

9-11 Sept. 2011

Firstpage

2003

Lastpage

2006

Abstract

Data acquisition and predictive filtering system plays an important role in Position and Orientation System (POS). Aiming at the realization of high precision data acquisition, a data acquisition and predictive filtering system is designed. The system acquire ring laser gyroscope(RLG) data, accelerator data and temperature data using FPGA. And the system filter the RLG data and accelerator data using DSP. A FIR filter was devised to eliminate the dither bias of RLG and accelerator. The results of stationary test test show that data acquisition and predictive filtering system can efficiently eliminate the dither bias of 80dB. The motor test results show that the precision of POS achieve 0.8 nmile/h, and the data acquisition and predictive filtering system content the RLG POS.

Keywords

data acquisition; digital signal processing chips; field programmable gate arrays; filtering theory; gyroscopes; ring lasers; synthetic aperture radar; DSP; FIR filter; FPGA; RLG POS; accelerator data; dither bias elimination; high precision data acquisition; orientation system; position system; predictive filtering system; ring laser gyroscope data; system filter; temperature data; Data acquisition; Digital signal processing; Educational institutions; Field programmable gate arrays; Finite impulse response filter; Global Positioning System; Ring lasers; POS; RLG; data acquisition; predictive filtering;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Communications and Control (ICECC), 2011 International Conference on

Conference_Location

Ningbo

Print_ISBN

978-1-4577-0320-1

Type

conf

DOI

10.1109/ICECC.2011.6066543

Filename

6066543