导弹系统振动频率自适应估计方法与仿真

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振动与冲击 ›› 2017, Vol. 36 ›› Issue (10) : 212-216.

论文

导弹系统振动频率自适应估计方法与仿真

张衡，芮筱亭，杨富锋，陈刚利

作者信息 +

The Adaptive Estimating Method and Simulation Used for The Vibration Frequency of The System of Missile

ZHANG Heng,RUI Xiao-ting,YANG Fu-feng,CHEN Gang-li

Author information +

文章历史 +

摘要

为了提高处于导弹高过载、强冲击、大振动复合动态环境中捷联惯组的输出精度，该文设计了级联型二阶自适应陷波滤波器来估计导弹的弹性振动频率。该滤波器采用带有遗忘因子的递推最小二乘法实时优化每个陷波滤波器的参数,具有计算复杂度低，收敛速度快等特点。仿真和实验结果表明，此方法对于处在复合动态环境中导弹振动信号的频率估计效果较好，且具有较好的抗噪声干扰能力，适合弹上计算机进行实时计算。

Abstract

To improve the output accuracy of inertial measurement unit which is in compound dynamic environment of missile which has a high acceleration, strong impact and high vibration, a cascade of second-order adaptive notch filters is designed to estimate the elastic vibration frequency of the missile. The filter use the recursive least square method which has a forgetting factor to optimize the parameters of each notch filter real-time, and it has the characteristics of low computational complexity, fast convergence speed. Results of simulation and experiment show that this method has a good frequency estimation effect for the vibration signals of missile which is in in compound dynamic environment, and it has a strong anti- noise ability, and be suitable for the real-time calculation of missile computer.

导出引用

张衡，芮筱亭，杨富锋，陈刚利. 导弹系统振动频率自适应估计方法与仿真[J]. 振动与冲击, 2017, 36(10): 212-216

ZHANG Heng,RUI Xiao-ting,YANG Fu-feng,CHEN Gang-li. The Adaptive Estimating Method and Simulation Used for The Vibration Frequency of The System of Missile[J]. Journal of Vibration and Shock, 2017, 36(10): 212-216

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