| 摘要 |
<p>PURPOSE:To attempt deletion of needed operators by memorizing a scan of mean amplitude data for every sweep on a logarithm video and automatically determining the threshold value for detecting the next scan on the basis of the maximum value in them. CONSTITUTION:The logarithm video 101 detected in logarithm out of a signal received with a radar is integrated on the amplitude at every sweep in a video integrater 102. The obtained integrated value video of the interference signal etc. at every sweep and the integrated range bin number for each sweep are sent to a mean amplitude extractor 103. In the extractor 103, the mean amplitude per one range bin is calculated from the integrated values different for each sweep and the range bin number. The amplitude 104 is supplied to a mean amplitude memory 105 and a threshold detector 108. The memory 105 renews and memorizes the mean amplitude at every sweep for every one scan and outputs the contents to a threshold generator 106. The generator 106 detects the maximum value in the mean amplitude for one scan and outputs it as threshold for detection 107 to a threshold detector 108.</p> |
