| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce a burden on an operator by compressing a large amount of data at analyzing frequency, and to efficiently analyze the data by making detection of signal component in observed signal easier. SOLUTION: The spectrum of observed signal is displayed in gray scale for each time and frequency to generate 2-dimention image. A characteristic data is selectively extracted out of the data contained in a specified time span for each frequency for compressing the 2-dimention image. The statistic is calculated which represents deviation in distribution of data value against data array for each time on the compressed image.</p> |
