ZHANG Yong-rui(张永瑞)1,2, SU Shu-qing(苏树清)1,2, RAN Zi-bo(冉自博)1,2, LIU Hong-yu(刘红雨)1,2
(1. Key Laboratory of Instrumentation Science & Dynamic Measurement (North University of China), Ministry of Education, Taiyuan 030051, China; 2. Department of Electronic Science and Technology, North University of China, Taiyuan 030051, China)
Abstract: This is a paper about laser gyro signal processing circuit which is designed based on field-programmable gate array(FPGA) and digital signal processor(DSP). Through a pre-amplifier circuit, FPGA and DSP, a weak current signal is converted and transferred, then sent to the computer to display the final results. Through the laser gyro performance testing, the obtained results coincide with those of the existing methods. Thus the designed circuit realizes the function of laser gyro signal processing.
Key words:laser gyro; signal processing; field-programmable gate array(FPGA); digital signal processor(DSP); finite impulse response (FIR) filter
CLD number: TN76 Document code: A
Article ID: 1674-8042(2013)02-0158-05 doi: 10.3969/j.issn.1674-8042.2013.02.014
References
[1] YANG Pei-gen, GONG Zhi-bing. Photoelectric inertial technology. Beijing: Weapon Industry Press, 1999: 21-94.
[2] Chow W W, Gea-Banacloche J, Pedrotti L M. The ring laser gyro. Reviews of Modern Physics, 1985, 57(1): 61-104.
[3] Ljung B H G. Pathlength controller for ring laser gyros. US Patent 4320974, 1982-03-23.
[4] Murphy H J. Digital pathlength controll for ring laser gyros, US Patent 5108182, 1992-04-25.
[5] Killpatrick J E. Ring laser gyro bias drift improvement method and apparatus. US Patent5438410, 1995-08-01.
[6] Kay R M. Sinusoidal noise injection into the dither of ring laser gyro. US Patent 5416584, 1995-05-16.
[7] Xilinx. Spartan-3E FPGA family: complete data sheet. [2013-01-05]. http://www.xilinx.com/spartan3e.
[8] Taxes Instruments. TMS320F2812 digital signal processors. [2013-01-06]. http://www.ti.com.
[9] YAO Xiao-tong, WANG Zi-ting. DSP technology practice tutorial. Beijing: China Railway Press, 2009: 3-20.
[10] XIE Dai-da. Design of software of inverter power system based on TMS320F2812. Master Thesis, Wuhan: Huazhong University of Science and Technology, 2007: 1-18.
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