PROBLEM TO BE SOLVED: To facilitate detection of noise components superimposed on a biological signal.SOLUTION: Component extracting means extracts a desired component from a plurality of signal waveforms based on a detected biological signal by performing principal component analysis or independent component analysis. Sorting means sorts and displays a plurality of extraction results obtained by the component extracting means, in a decreasing order of its periodicity. Noise component selection means accepts a selection of one of the extraction results obtained by the component extraction means, as a component of noise.SELECTED DRAWING: Figure 20COPYRIGHT: (C)2019,JPO&INPIT【課題】生体信号に重畳されたノイズ成分の検出を容易にする。【解決手段】検出された生体信号に基づく複数の信号波形から所望の成分を主成分分析または独立成分分析を行って抽出する成分抽出手段と、前記成分抽出手段による複数の抽出結果をその周期性の高いものから順にソートして表示するソート手段と、前記成分抽出手段による複数の抽出結果から一の前記抽出結果をノイズの成分とする選択を受け付けるノイズ成分選択手段と、を備える。【選択図】図２０
