| 摘要 |
<p>PURPOSE:To improve precision in position detection. CONSTITUTION:From electric wave S1, transmitted from an antenna 5, and reception wave S2, beat signal Sb corresponding to a ground target or the ground which is its background, is generated, and while the signal level of pulse signal Sp, whose signal level is the integration value of the beat signal Sb for each specified time, is Vth or higher, corresponding to the target, pulse count N is counted. When the count value N becomes, when the target is so scanned as its center is scanned, a half of target scanning time NO and, at the same time, when a peak value of signal level of the pulse signal Sp is captured, the fact that the center of the target is scanned is detected.</p> |
