| 摘要 |
<p>PURPOSE:To confirm the total performance of a radar easily by incorporating an inspecting circuit which guides part of a transmission wave to a receiver. CONSTITUTION:A directional coupler 6 extracts a part of the transmission wave of a transmitter from a transmission line and delays it through a delay line 10. Further, a 3dB coupler 7 couples the input and output of the line 10, and a line switch 9 leads the output signal of the line 10 into the radar receiver 5. Then, a pulse wave which is continuous at intervals of the delay time of the line 10 is transmitted to the receiver 5 to know deterioration in the total performance of the radar.</p> |
