摘要
介绍了光纤陀螺技术的发展及应用 ,阐述了小波分析的理论及小波变换快速算法 ,并给出了光纤陀螺漂移的数学模型及零偏零漂的定义 ,阐明了小波分析在光纤陀螺信号处理中的具体应用方法 ,对于实测的光纤陀螺信号进行了多尺度小波分解和多分辨力分析 ,证明了该方法在抑制光纤陀螺输出信号零漂的有效性。为消除陀螺漂移提供了一个新的途径。
The development and application of fiber optic gyro(FOG) are introduced. The theory of wavelet analysis and the fast algorithm of wavelet transform are introduced. The model of the fiber optic gyro drift and the meaning of zero drift are clarified, principle of some methods for eliminating signal zero drift is analyzed. A drift elimination method based on wavelet analysis is presented. Multi-scale wavelet decomposition and multi-resolution analysis (MRA) are used in the real time signal of FOG, and the validity of wavelet filtering is verified.
出处
《光电子技术》
CAS
2005年第1期48-51,共4页
Optoelectronic Technology
关键词
光纤陀螺
小波分析
零漂
fiber-optic gyro(FOG)
wavelet analysis
zero drift
