| 摘要 |
PURPOSE:To attain tracking of a target even in case a Doppler frequency is extremely low, by operating a CW tracking radar as a pulse tracking radar, when the Doppler frequency goes to a predetermined frequency or less. CONSTITUTION:The output signal of a CW receiver 2 switched in accordance with the output of a Doppler detector 5 is applied to a Doppler detector 5, too, and when it goes to a predetermined Doppler frequency in advance, a switch 4 is operated. As a result, the CW receiver 2 is switched to a pulse receiver 3, a transmitting system also outputs a pulse, and a CW tracking radar is operated as a pulse tracking radar. The azimuth angle of a target and an elevation angle signal are outputted by a signal processor 6. |
