Develop of Vibration Signal Acquisition and Processing System Based on Wavelet De-noising

被引：0
|
作者：
Yin Junhui [1 ]
Zheng Jian [1 ]
Teng Hongzhi [1 ]
Hu Jinqiang [1 ]
Li Feng [1 ]
机构：
[1] Ordnance Engn Coll, Shijiazhuang 050003, Hebei, Peoples R China
来源：
ISTM/2009: 8TH INTERNATIONAL SYMPOSIUM ON TEST AND MEASUREMENT, VOLS 1-6 | 2009年
关键词：
gun shooting; acquisition of vibration signal; wavelet de-noising; characteristics in time and frequency domain;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The components of the gun endure acute vibration during its shooting process. If the amplitude of vibration is too high, bodywork's vibration will cause great initial disturbance, make the pill miss the preset target and impact the accuracy of firing. If gun's shooting vibration has been tested, its signal could be processed and analyzed, which can offer valuable reference for the effect of initial disturbance to gun's firing accuracy. The paper designs the testing system for gun's shooting vibration, according to the test state and requirement during gun's shooting. With the problem of noise interference inside the signal, wavelet threshold de-noising is adopted to decrease noise when the principle of heuristic threshold and improved threshold function are used. Then the characteristics in time and frequency domain are enhanced.
引用
收藏
页码：502 / 504
页数：3
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