EQUOS RESEARCH CO., LTD.;株式会社エクォス・リサーチ;NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY;国立大学法人岩手大学
发明人:
SATO Atsushi,佐藤敦,HONMA Naoki,本間尚樹,KOBAYASHI Koichiro,小林宏一郎,IWAI Morio,岩井守生,SATO Jun,佐藤潤
申请号：
JPJP2020/014634
公开号：
WO2020/196916A1
申请日:
2020.03.30
申请国别(地区):
JP
年份:
2020
代理人:
摘要：
The purpose of the present invention is to accurately detect biological signals. The reflected response of a microwave emitted to a living body includes an amplitude component and a phase component. Ideally, it is sufficient that the reflection component hv(t) from the living body is analyzed. However, the reflection response component h(t) includes not only the reflection component hv(t) from the living body but also the reflection components hf(t) from objects other than the living body such as walls and furniture. This causes displacement of the origin point for analysis from the origin point O, and the displacement as a signal error affects the detection accuracy. In view of this, in the present invention a signal processing device 4 determines a virtual origin point O' as a reference for analyzing hv(t) by analyzing an obtained signal, determines the phase component and the amplitude component from the virtual origin point O', and thereby can obtain a signal more suited for a phenomenon than those obtained by conventional methods using a filter. More specifically, in order to determine the phase and amplitude from the virtual origin point O', the signal processing device 4 uses the difference between the origin point O and the virtual origin point O' as an offset amount and offsets h(t) using the amount.La présente invention concerne la détection précise de signaux biologiques. La réponse réfléchie d'une micro-onde émise vers un corps vivant comprend une composante amplitude et une composante phase. Idéalement, il suffit que la composante de réflexion hv(t) du corps vivant soit analysée. Cependant, la composante de réponse de réflexion h(t) comprend non seulement la composante de réflexion hv(t) provenant du corps vivant mais également les composantes de réflexion hf(t) des objets autres que le corps vivant tels que des parois et des meubles. Ceci provoque le déplacement du point d'origine pour l'analyse depuis le point d'origine O, et le déplacement en tant qu
