迭代频域反卷积滤波器的多参数优化

本文首先介绍了几种成功应用于现代时域测量和计量学中的迭代频域反卷积滤波器.包括Guillaumc-Nahman(G-N)反卷积滤波器、最佳补偿反卷积滤波器和综合反卷积滤波器;着重介绍了迭代频域反卷积滤波器的多参数优化原理并进行了必要的公式推导,给出了更为合理的反卷积滤波器传输函数表达式.然后,对这些反卷积滤波器进行了计算机仿真,并给出了每种反卷积滤波器的滤波效果与设定值相比较的滤形图.最后,对这些反卷积滤波器的性能进行了评述和比较,结果表明无论是波形还是标准偏差,多参数反卷积滤波器的效果最好.

Multiparameter Optimization of Iterative Frequency-Domain Deconvolution Filters

Some iterative frequency domain deconvolution filters applied to modern time domain measurement and metrology successfully are presented at first,such as Guillaume Nahman deconvolution filter,optimal compensation deconvolution filter and synthetic deconvolution filter;Multiparameter optimization reason of iterative frequenay doman deconvolution filter is presented specifically and formula is deduced necessarily.The more reasonable expression of transmission function of deconvolution filter is given.And then,computer simulations for these deconvolution filters are performed and the waveform figures are given to compare the filtering effect of each deconvoltuion filter with the initialization.Finally,performance of these filters is cvaluated and compared and the result illustrates that multiparameter dcconvolution filter is the best one in waveform and variance.