| 摘要 |
<p>PROBLEM TO BE SOLVED: To correctly and quickly read frequency analysis data displayed at an underwater acoustic signal-processing apparatus by a cursor. SOLUTION: A signal shape-judging part 1 having an input of a frequency analysis data 101 detects cluster data exceeding a level threshold value 103 based on a cursor position data 102, and decides a frequency width by a frequency width threshold value WT107. If the frequency width is small, a maximum amplitude value of the cluster data is detected and a frequency of the data is output as a cursor read value 104. When the frequency width is large, an average frequency of a cluster data 105 is calculated at an average value- calculating part 2 with an amplitude being used as a weight, output as a cursor read value 106 and displayed at a display part 3.</p> |
