Keisuke Takao, Takahiro Natori, Toma Miyata, Naoyuki Aikawa. An Improved Method for Instantaneous Frequency Estimation Using a Finite Order Hilbert Transformer. 2020 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2020 - Proceedings. 2020. 1-5
Keisuke Takao, Takahiro Natori, Toma Miyata, Naoyuki Aikawa. Accuracy Improvement of Instantaneous Frequency Estimation by Finite Order FIR Hilbert Transformer Using Notch Filter. 2020 9th International Conference on Modern Circuits and Systems Technologies, MOCAST 2020. 2020
Toma Miyata, Takahiro Natori, Naoyuki Aikawa. A Design Method for Linear Phase FIR Filters with Multiple Variable Factors in the Stopband and Specified High Attenuation. IECON Proceedings (Industrial Electronics Conference). 2019. 2019-October. 43-47