Title :
Research on Anti-Vibration Scheme of FOG SINS
Author :
Wu Lei ; Cheng Jian-Hua ; Sun Feng
Author_Institution :
Autom. Coll., Harbin Eng. Univ., Harbin
Abstract :
To reduce the impact on characteristic of FOG (fiber optic gyro) SINS(strapdown inertial navigation system) from vibration, a new anti-vibration scheme based on improvement of mechanical structure, craft of optics and signal processing is proposed. Using finite element theory, the frameworkpsilas resonance frequency of FOG is studied and enhanced to adapt the surrounding; Vibration modulation mechanism of FOG is discussed, and the producing art is summarized; The output of FOG is filtered by wavelet signal processing. The vibrating noises are eliminated and the accuracy of alignment is enhanced.
Keywords :
aerospace computing; fibre optic gyroscopes; filtering theory; finite element analysis; inertial navigation; vibration control; FOG SINS; antivibration scheme; fiber optic gyro; finite element theory; mechanical structure; resonance frequency; strapdown inertial navigation system; vibration modulation mechanism; wavelet signal processing; Finite element methods; Inertial navigation; Optical fibers; Optical filters; Optical modulation; Optical signal processing; Resonance; Resonant frequency; Silicon compounds; Vibrations; Anti-Vibration; FOG SINS; finite element; wavelet;
Conference_Titel :
Computer Engineering and Technology, 2009. ICCET '09. International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-3334-6
DOI :
10.1109/ICCET.2009.88
