Quasioptimal Nonlinear Filtering of Laser Doppler Vibrometer Signals

被引：1
|
作者：
Grechikhin, V. A. [1 ]
Titov, D. A. [1 ]
机构：
[1] Natl Res Univ, Moscow Power Engn Inst, Ul Krasnokazarmennaya 14, Moscow 111250, Russia
来源：
OPTOELECTRONICS INSTRUMENTATION AND DATA PROCESSING | 2014年 / 50卷 / 05期
关键词：
laser Doppler vibrometer; quasioptimal nonlinear filtering algorithm; relative vibration displacement amplitude; mathematical simulation method;
D O I：
10.3103/S8756699014050100
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The problem of quasioptimal nonlinear filtering of heterodyne laser Doppler vibrometer signals is solved in the Gaussian approximation of a posteriori probability density of the vector of estimated parameters. A filtering algorithm is synthesized for the case of monoharmonic vibrations with a fluctuating vibration displacement amplitude model in the form of a normal Markov random process. Mathematical simulation is used to show the efficiency of the algorithm of tracking the unknown parameters of the laser Doppler vibrometer signal in the presence of additive monitoring noise and the deterministic trend of the information parameter.
引用
收藏
页码：511 / 518
页数：8
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