Frame Interval Control Technique for High-Frequency Electric Field Imaging by Equivalent-Time Sampling

Kiyotaka Sasagawa; Yoshihiro Akamatsu; Ryoma Okada; Maya Mizuno; Hironari Takehara; Makito Haruta; Hiroyuki Tashiro; Jun Ohta

doi:10.1109/APMC57107.2023.10439718

Frame Interval Control Technique for High-Frequency Electric Field Imaging by Equivalent-Time Sampling

Kiyotaka Sasagawa, Yoshihiro Akamatsu, Ryoma Okada, Maya Mizuno, Hironari Takehara, Makito Haruta, Hiroyuki Tashiro, Jun Ohta

Division of Medical Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We propose an equivalent-time sampling method with controlled frame spacing to improve the intermediate frequency of field imaging systems. Simple equivalent-time sampling with a constant frame interval detects frequency components other than those to be observed. We present a method that cancels frequency components other than the frequency to be observed by lengthening the frame interval by 1/4 cycle every four frames instead of keeping it constant. We show that only the signal of the frequency to be observed can be detected by an image sensor. We also apply this method to electric field imaging.

Original language	English
Title of host publication	2023 Asia-Pacific Microwave Conference, APMC 2023
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	363-365
Number of pages	3
ISBN (Electronic)	9781665494182
DOIs	https://doi.org/10.1109/APMC57107.2023.10439718
Publication status	Published - 2023
Event	31st Asia-Pacific Microwave Conference, APMC 2023 - Taipei, Taiwan, Province of China Duration: Dec 5 2023 → Dec 8 2023

Publication series

Name	Asia-Pacific Microwave Conference Proceedings, APMC
ISSN (Electronic)	2690-3946

Conference

Conference	31st Asia-Pacific Microwave Conference, APMC 2023
Country/Territory	Taiwan, Province of China
City	Taipei
Period	12/5/23 → 12/8/23

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering

Access to Document

10.1109/APMC57107.2023.10439718

Cite this

Sasagawa, K., Akamatsu, Y., Okada, R., Mizuno, M., Takehara, H., Haruta, M., Tashiro, H., & Ohta, J. (2023). Frame Interval Control Technique for High-Frequency Electric Field Imaging by Equivalent-Time Sampling. In 2023 Asia-Pacific Microwave Conference, APMC 2023 (pp. 363-365). (Asia-Pacific Microwave Conference Proceedings, APMC). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APMC57107.2023.10439718

Frame Interval Control Technique for High-Frequency Electric Field Imaging by Equivalent-Time Sampling. / Sasagawa, Kiyotaka; Akamatsu, Yoshihiro; Okada, Ryoma et al.
2023 Asia-Pacific Microwave Conference, APMC 2023. Institute of Electrical and Electronics Engineers Inc., 2023. p. 363-365 (Asia-Pacific Microwave Conference Proceedings, APMC).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Sasagawa, K, Akamatsu, Y, Okada, R, Mizuno, M, Takehara, H, Haruta, M, Tashiro, H & Ohta, J 2023, Frame Interval Control Technique for High-Frequency Electric Field Imaging by Equivalent-Time Sampling. in 2023 Asia-Pacific Microwave Conference, APMC 2023. Asia-Pacific Microwave Conference Proceedings, APMC, Institute of Electrical and Electronics Engineers Inc., pp. 363-365, 31st Asia-Pacific Microwave Conference, APMC 2023, Taipei, Taiwan, Province of China, 12/5/23. https://doi.org/10.1109/APMC57107.2023.10439718

Sasagawa K, Akamatsu Y, Okada R, Mizuno M, Takehara H, Haruta M et al. Frame Interval Control Technique for High-Frequency Electric Field Imaging by Equivalent-Time Sampling. In 2023 Asia-Pacific Microwave Conference, APMC 2023. Institute of Electrical and Electronics Engineers Inc. 2023. p. 363-365. (Asia-Pacific Microwave Conference Proceedings, APMC). doi: 10.1109/APMC57107.2023.10439718

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abstract = "We propose an equivalent-time sampling method with controlled frame spacing to improve the intermediate frequency of field imaging systems. Simple equivalent-time sampling with a constant frame interval detects frequency components other than those to be observed. We present a method that cancels frequency components other than the frequency to be observed by lengthening the frame interval by 1/4 cycle every four frames instead of keeping it constant. We show that only the signal of the frequency to be observed can be detected by an image sensor. We also apply this method to electric field imaging.",

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AU - Sasagawa, Kiyotaka

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AU - Takehara, Hironari

AU - Haruta, Makito

AU - Tashiro, Hiroyuki

AU - Ohta, Jun

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AB - We propose an equivalent-time sampling method with controlled frame spacing to improve the intermediate frequency of field imaging systems. Simple equivalent-time sampling with a constant frame interval detects frequency components other than those to be observed. We present a method that cancels frequency components other than the frequency to be observed by lengthening the frame interval by 1/4 cycle every four frames instead of keeping it constant. We show that only the signal of the frequency to be observed can be detected by an image sensor. We also apply this method to electric field imaging.

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Frame Interval Control Technique for High-Frequency Electric Field Imaging by Equivalent-Time Sampling

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