| 动态Allan方差的理论改进及其应用研究 |
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| 引用本文： | 张娜,李绪友.动态Allan方差的理论改进及其应用研究[J].光学学报,2011(11):70-75. |
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| 作者姓名： | 张娜 李绪友 |
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| 作者单位： | 哈尔滨工程大学自动化学院; |
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| 基金项目： | 中俄科技合作专项(2010DFR80140)资助课题 |
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| 摘 要： | 动态Allan方差(DAVAR)法是一种分析非平稳性信号的有效工具,但在辨识噪声时存在功率泄漏和定量表示单一的缺陷.为此,提出窗函数组合法和噪声量值的二维表示法对其加以改进,用于分析和定量描述光纤陀螺动态误差中的各种噪声项.窗函数组合法在光纤陀螺动态误差分解的基础上采用矩形窗和汉宁窗分别对其中的中低频噪声和高频噪声进行...
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| 关 键 词： | 信号处理 动态Allan方差 窗函数组合 噪声 光纤陀螺 动态误差 |
Research on Theoretical Improvement of Dynamic Allan Variance and Its Application |
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| Zhang Na Li Xuyou.Research on Theoretical Improvement of Dynamic Allan Variance and Its Application[J].Acta Optica Sinica,2011(11):70-75. |
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| Authors: | Zhang Na Li Xuyou |
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| Institution: | Zhang Na Li Xuyou(College of Automation,Harbin Engineering University,Harbin,Heilongjiang 150001,China) |
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| Abstract: | The dynamic Allan variance(DAVAR) is an effective method for analyzing non-stationary signal.However,it has defects such as power leakage and single quantification in noise identification.Therefore,window function combination method and two-dimensional expression of noise value are introduced for their improvements.They are used for analysis and quantitative measurement of various noise terms in the fiber optic gyroscope dynamic error.Based on the dynamic error resolution of fiber optic gyroscope,rectangula... |
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| Keywords: | signal processing dynamic Allan variance window function combination noise fiber optic gyroscope dynamic error |
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