Quasi-Optimal Processing of Laser Doppler Vibrometer Signals

被引：0

作者：

Grechikhin, V. 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 | 2012年 / 48卷 / 03期

关键词：

laser Doppler vibrometer; quasi-optimal estimation of the vibration amplitude; estimation error;

D O I：

10.3103/S8756699012030041

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A method of quasi-optimal processing of laser Doppler vibrometer (LDV) signals in the case of monoharmonic vibrations is considered. Under certain assumptions, the problem of quasi-optimal estimation of the information parameter of the LDV signal, related through a known constant multiplier to the relative amplitude of vibrations, is solved. A structure of the device for optimal estimation is proposed. Conditions of optimality of the method are given. Statistical characteristics of estimates of the relative vibration amplitude are investigated by a numerical modeling method. The error of these estimates is compared with the Rao-Kramer bounds.

引用

页码：244 / 249

页数：6

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