| 摘要 |
<p>PURPOSE:To attain to enhance the discrimination degrees of a radar reflection and a vector reflection and to enable the grasping of accurate observation information even in a complicated PPI scope images, by simultaneously applying a plurality of signals different in scanning rates to fluorescent bodies different in afterglow characteristics. CONSTITUTION:A radar image signal is applied to the cathode of CRT7 after amplified by a reflection signal amplifier 6 while an antenna rotary signal is subjected to rotary sweep by a PPI sweep generator 3 and the treated signal is applied to a deflection coil through a deflection amplifier 4 to be observed as a PPI picture. This radar reflection signal is renewed at every one rotation of an antenna and, during this time, observation is performed by the emission color of long afterglow characteristics. In this case, the sweep signal from a computer 1 is applied to the deflection coil through a vector generator 2 and an amplifier during the stop period of the radar reflection signal to scan electron beam. When the scanning rate of the signal generated in a computer 1 is made extremely fast as compared with that of the radar image, this signal is always observed by shorter emission color of the afterglow characteristics.</p> |
