| 摘要 |
<p>PURPOSE:To obtain a testing device of a video integration circuit in a radar apparatus, which makes it possible to check up automatically the whole characteristics of an absolute value circuit constituting the video integration circuit and also to confirm that video signals at the same distance between hits are integrated. CONSTITUTION:A testing device 1 for testing a video integration circuit 3 integrating a bipolar video signal composed of an I video signal and a Q video signal generates a testing video signal composed of the I video signal and the Q video signal formed of a cosine wave and a sine wave which have prescribed periods and turn to zero momentarily at each prescribed interval respectively.</p> |
