Presentation 2021-10-14
A Method of Designing a Hilbert Transformer with Transmission Zeros at Specified Positions
Ohata Yohei, Takao Keisuke, Natori Takahiro, Aikawa Naoyuki,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) A method using a FIR Hilbert transformer is known as a method for estimating frequency. In this method, an oscillating component is generated in addition to the estimated instantaneous frequency, and by removing this component, highly accurate frequency estimation is possible. However, in general, when the Hilbert transformer is applied to a noisy signal, a bandpass filter and a Hilbert transformer are required to be connected vertically, which increases the order of the whole system. In this paper, we design a filter that can perform the Hilbert transform while removing noise by placing the transmission zeros at a specified position on the Hilbert transformer with a stopband. As a result, it is shown that the order of the whole system can be reduced compared with the method of connecting bandpass filters vertically.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Filter design / Hilbert Transformer / Transmittion zeros / FIR filter
Paper # CAS2021-19,NLP2021-17
Date of Issue 2021-10-07 (CAS, NLP)

Conference Information
Committee CAS / NLP
Conference Date 2021/10/14(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Hiroki Sato(Sony LSI Design) / Takuji Kosaka(Chukyo Univ.)
Vice Chair Yoshinobu Maeda(Niigata Univ.) / Akio Tsuneda(Kumamoto Univ.)
Secretary Yoshinobu Maeda(Sony LSI Design) / Akio Tsuneda(NIT, Toyama college)
Assistant Motoi Yamaguchi(TECHNOPRO) / Yohei Nakamura(Hitachi) / Takahide Sato(Univ. of Yamanashi) / Yasutoshi Aibara(Murata Manufacturing) / Hideyuki Kato(Oita Univ.) / Yuichi Yokoi(Nagasaki Univ.)

Paper Information
Registration To Technical Committee on Circuits and Systems / Technical Committee on Nonlinear Problems
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Method of Designing a Hilbert Transformer with Transmission Zeros at Specified Positions
Sub Title (in English)
Keyword(1) Filter design
Keyword(2) Hilbert Transformer
Keyword(3) Transmittion zeros
Keyword(4) FIR filter
1st Author's Name Ohata Yohei
1st Author's Affiliation Tokyo University of Science(TUS)
2nd Author's Name Takao Keisuke
2nd Author's Affiliation Tokyo University of Science(TUS)
3rd Author's Name Natori Takahiro
3rd Author's Affiliation Tokyo University of Science(TUS)
4th Author's Name Aikawa Naoyuki
4th Author's Affiliation Tokyo University of Science(TUS)
Date 2021-10-14
Paper # CAS2021-19,NLP2021-17
Volume (vol) vol.121
Number (no) CAS-196,NLP-197
Page pp.pp.12-16(CAS), pp.12-16(NLP),
#Pages 5
Date of Issue 2021-10-07 (CAS, NLP)