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Correction of Dynamic Error Result from Measurement System Limitations
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  • 分类:TP13[自动化与计算机技术—控制科学与工程;自动化与计算机技术—控制理论与控制工程] TB9[机械工程—测试计量技术及仪器;一般工业技术—计量学]
  • 作者机构:[1]Key lab of Instrumentation Science and Dynamic Testing (Ministry of Education), North University of China, Taiyan 030051, China
  • 相关基金:The paper is sponsored by National Natural Science Foundation of China (No. 50675211); Natural Science Foundation (No 2009011023); Returned Overseas Graduates Foundation (No. 2008067) of Shanxi Province in China Acknowledge The author wishes to thank Professor Junqin Huang of Beijing University of Aeronautics & Astronautics and all other friends who previously discussed each other and provided technical support.
中文摘要:

动态错误的主要原因由于解决这个问题的 system.One 方法正在设计的测量的频率反应限制问题是的有效反的 tilter.Since 性恶,噪音不得不在在 estimation.The 纸偏导的牺牲被压制的在在重建的 signals.The 的大偏差放大了的测量愿望原因的小无常基于 Fredholm integr 的稳定的答案在 freqtency 领域介绍反的过滤器的一种设计方法

英文摘要:

The main cause of dynamic errors is due to frequency response limitation of measurement system. One way of solving this problem is designing an effective inverse filter. Since the problem is ill-conditioned, a small uncertainty in the measurement will came large deviation in reconstncted signals. The amplified noise has to be suppressed at the sacrifice of biasing in estimation. The paper presents a kind of designing method of inverse filter in frequency domain based on stabilized solutions of Fredholm integral equations of the fast kind in order to reduce dynamic errors. Compared with previous several work, the method has advantage of generalization. Simulations with different Signal-to-Noise ratio (SNR) are investigated. Flexibility of the method is verified. Application of correcting dynamic error is given.

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