| Presentation | 2020-05-29 Accuracy improvement of instantaneous frequency estimation using variable FIR filter with transmission zeros Keisuke Takao, Takahiro Natori, Toma Miyata, Naoyuki Aikawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Frequency estimation of sine wave signals has been studied in a wide range of fields.One of the methods is to use instantaneous frequency.In this method, a complex signal called an analysis signal is generated using a Hilbert transformer, and the instantaneous frequency is obtained by differentiating the instantaneous phase of this analysis signal with respect to time.However, since the Hilbert transformer designed with a finite order has ripple as an approximation error, the estimated instantaneous frequency contains an oscillatory component in addition to the true frequency.This error can be suppressed by increasing the order of the Hilbert transducer, but the increase in the order results in an increase in the delay for obtaining the instantaneous frequency.In this paper, the vibration component of the instantaneous frequency component generated by the finite order Hilbert transformer is clarified.Then, it is shown that the instantaneous frequency can be estimated with high accuracy by removing the vibration component using a variable FIR filter with a transmission zeros. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Frequency estimation / Hilbert transformer / variable filter |
| Paper # | SIP2020-6,BioX2020-6,IE2020-6,MI2020-6 |
| Date of Issue | 2020-05-21 (SIP, BioX, IE, MI) |
| Conference Information | |
| Committee | MI / IE / SIP / BioX / ITE-IST / ITE-ME |
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| Conference Date | 2020/5/28(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | 会議ツールは未定 |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Image and signal processing/analysis/AI technology, and their application |
| Chair | Yoshiki Kawata(Tokushima Univ.) / Hideaki Kimata(NTT) / Naoyuki Aikawa(TUS) / Akira Otsuka(IISEC) / Shigetoshi Sugawa(Tohoku Univ.) / Arai Hiroyuki(Nippon Institute of Technology) |
| Vice Chair | Takayuki Kitasaka(Aichi Inst. of Tech.) / Hidekata Hontani(Nagoya Inst. of Tech.) / Kazuya Kodama(NII) / Keita Takahashi(Nagoya Univ.) / Kazunori Hayashi(Osaka City Univ) / Yukihiro Bandou(NTT) / Tetsushi Ohki(Shizuoka Univ.) / Takahiro Aoki(Fujitsu Labs.) / Takayuki Hamamoto(Tokyo Univ. of Science) |
| Secretary | Takayuki Kitasaka(Yamaguchi Univ.) / Hidekata Hontani(Univ. of Hyogo) / Kazuya Kodama(NTT) / Keita Takahashi(NHK) / Kazunori Hayashi(Hiroshima Univ.) / Yukihiro Bandou(Hosei Univ.) / Tetsushi Ohki(Univ. of Electro-Comm.) / Takahiro Aoki(SECOM) / Takayuki Hamamoto(Saitama Univ.) / (Panasonic) |
| Assistant | Hotaka Takizawa(Tsukuba Univ.) / Yoshito Otake(NAIST) / Kyohei Unno(KDDI Research) / Norishige Fukushima(Nagoya Inst. of Tech.) / Kenjiro Sugimoto(Waseda Univ.) / Daishi Watabe(Saitama Inst. of Tech.) / Ryota Horie(Shibaura Inst. of Tech.) |
| Paper Information | |
| Registration To | Technical Committee on Medical Imaging / Technical Committee on Image Engineering / Technical Committee on Signal Processing / Technical Committee on Biometrics / Technical Group on Information Sensing Technologies / Technical Group on Media Engineering |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Accuracy improvement of instantaneous frequency estimation using variable FIR filter with transmission zeros |
| Sub Title (in English) | |
| Keyword(1) | Frequency estimation |
| Keyword(2) | Hilbert transformer |
| Keyword(3) | variable filter |
| 1st Author's Name | Keisuke Takao |
| 1st Author's Affiliation | Tokyo University of Science(TUS) |
| 2nd Author's Name | Takahiro Natori |
| 2nd Author's Affiliation | Tokyo University of Science(TUS) |
| 3rd Author's Name | Toma Miyata |
| 3rd Author's Affiliation | Salesian Polytechnic(Salesian Polytechnic) |
| 4th Author's Name | Naoyuki Aikawa |
| 4th Author's Affiliation | Tokyo University of Science(TUS) |
| Date | 2020-05-29 |
| Paper # | SIP2020-6,BioX2020-6,IE2020-6,MI2020-6 |
| Volume (vol) | vol.120 |
| Number (no) | SIP-38,BioX-37,IE-39,MI-40 |
| Page | pp.pp.23-28(SIP), pp.23-28(BioX), pp.23-28(IE), pp.23-28(MI), |
| #Pages | 6 |
| Date of Issue | 2020-05-21 (SIP, BioX, IE, MI) |