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.
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. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(10): 212-216.
[1]刘洋.飞机发动机振动信号数字处理与分析技术研究[D].哈尔滨：哈尔滨工业大学，2008.
Liu Yang. Research on Digital Processing and Analysis Technology of Airplane Engine Vibration Signal[D]. Harbin:Harbin Institute of Technology,2008.
[2] Li Tan, and Jean Jiang.Novel Adaptive IIR Filter for Frequency Estimation and Tracking[J]. IEEE Signal Processing Magazine,2009,11:186-189.
[3]芮筱亭，贠来峰，陆毓琪，等.多体系统传递矩阵法及其应用[M].北京：科学出版社，2008.
RUI Xiao-ting, YUN Lai-feng, LU Yu-qi, et al. Transfer Matrix Method of Multi-body System and Its Applications [M]. Beijing: Science Press, 2008.
[4]张晓菲，刘振兴，陈 栋.频率估计综述[J].信息技术,2011,11:58-62.
Zhang Xiao-fei,Liu Zhen-xing, Chen Dong. Summary of Frequency Estimation [J].Information Technology, 2011,11:58-62.
[5]Rao,D.V., and Kung,S.Y. Adaptive Notch Filtering for the Retrieval of Sinusoids in Noise[J].Signal Processing, 1984,32(4): 791-802.
[6]Regalia, P.A..An Improved Lattice-Based Adaptive IIR Notch Filter[J].Signal Processing,
1991, 39(9):2124-2128.
[7]单东升,张培强,吴耀武,等.基于递推最小二乘法的炮控系统参数辨识仿真[J].系统仿真学报, 2013,25(8):1726-1729.
Shan Dong-sheng, Zhang Pei-qiang, Wu Yao-wu, et al. Simulation of Parameter Identification for Gun Control System Based on RLS [J].Journal of System Simulation, 2013,25(8):1726-1729.
[8]李湘清,孙秀霞,王栋,等.递推最小二乘法在LQR参数调整中的应用[J].弹箭与制导学报，2007,27(4):
99-101.
Li Xiang-qing,Sun Xiu-xia,Wang Dong, Li Shi-bo, Liu Yan-fang. LQR Parameter Regulate Using The Recursive Least Square [J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2007, 27(4):99-101.
[9]Choi.H.D.and Bang, H.C..An Adaptive Control Approach to the Attitude Control of a Flexible Rocket[J]. Control Engineering Practice, 2000, 8(9):1003-1010.
