PROBLEM TO BE SOLVED: To provide a biological state acquisition device or the like which acquires a biological signal of a living body in a non-contact state to acquire information about a biological state without performing complicated processing, such as a frequency analysis, to the biological signal.SOLUTION: The biological state acquisition device has: an IQ signal acquisition means 51 for transmitting electromagnetic waves to the body surface of a living body, performing IQ wave detection of the reflection waves, and successively acquiring an I signal and a Q signal outputted from the IQ wave detector 20 for outputting the I signal and the Q signal time serially and a biological state acquisition means 52 for acquiring the state of a living body on the basis of a trace of an IQ plane of an acquisition signal acquired by the IQ signal acquisition means 51.COPYRIGHT: (C)2011,JPO&INPIT【課題】非接触で生体の生体信号を取得し、生体信号に対して周波数解析などの複雑な処理をせずに、生体状態に関する情報を取得することのできる生体状態取得装置等を提供する。【解決手段】生体の体表面に電磁波を送信し、その反射波をIQ検波して、I信号とQ信号を出力するIQ検波器20から出力されたI信号とQ信号とを時系列に順次取得するIQ信号取得手段51と、IQ信号取得手段51で取得した取得信号のIQ平面上の軌跡に基づいて、生体の状態を取得する生体状態取得手段52とを有するものである。【選択図】図1
