open access

https://hdl.handle.net/2115/39735

Differential Filters for the Identification of Dead Time

英語

2009-10-04

Asia-Pacific Signal and Information Processing Association, 2009 Annual Summit and Conference, International Organizing Committee

Proceedings : APSIPA ASC 2009 : Asia-Pacific Signal and Information Processing Association, 2009 Annual Summit and Conference

434-437

APSIPA ASC 2009: Asia-Pacific Signal and Information Processing Association, 2009 Annual Summit and Conference. 4-7 October 2009. Sapporo, Japan. Poster session: Signal Processing Theory and Methods I (6 October 2009).

In this paper, a generation method is proposed that is used for the identification of the dead time of a transfer function which parameters are known without the dead time. The proposed filters compose a group of several order differential FIR type digital filters. For non negative integer r_[max] ≥ 0, r(0 ≤ r ≤ r_[max]) -th order differential filter is composed by cascade connection of r pieces of one order difference filter and r_[max] - r pieces of one order low pass filter and several order low pass filter. The amplitude values of them dividing with (jω)^[r] are approximately same low pass characteristic. Moreover, these filters have ideal phase characteristics with several interval of the dead time. Using this filter group, we can show that the identification of the dead time of a transfer function is available. In this paper, the numerical examples of the proposed filters are presented.

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