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《Earthquake Engineering and Engineering Vibration》 2005-01
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Research of input signal recovery method for accelerometer

Yang Zhenyu~1, Gao Feng~2, Liu Zhiyan~1, Shen Yi~1, Ma Shulin~2 (1.College of Space Technology,Harbin Institute of Technology,Harbin 150001,China; 2.Institute of Engineering Methanics,China Earthquake Administration,Harbin 150080,China)  
In order to compensate the measurement error of measuring result caused by limited band of a vibration pick-up and its measurement system, a method for recovering the original input signal of the vibration pick-up using FIR transversal filter is presented. The coefficients of the FIR transversal filter was identified by using adaptive RLS algorithm while the output signal of the vibration pick-up was input into the FIR transversal filter. An inverse-convolution filter was acquired to recover the original input signal of vibration pick-up. The final results examined by serial different characteristic signals indicate that the method presented is effective and appears to have fine generalization ability.
【Fund】: 科技部科研专项基金项目(2003DID2J099);; 地震科学联合基金项目(104139);; 国家自然科学基金项目(50378086)
【CateGory Index】: P315.62
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