| 摘要 |
<p>PURPOSE:To obtain effect for proper main bang suppression by setting the waveform of the envelope output of the output of a magnetron obtained by a 1st waveform shaping circuit to a prescribed value by a level setting circuit through a 2nd waveform shaping circuit. CONSTITUTION:The sent signal generated by the magnetron 3 with a trigger signal sent by a transmission part 2 is radiated from an antenna 1 through a circulator 4. Then a reflected wave from a body to be measured is detected by the antenna 1, passed through the circulator 4, a limiter 5, and a reception part 6, and displayed on a display part 7. A magnetron current flowing through the magnetron 3, on the other hand, is shaped by a magnetron current waveform shaping circuit 8 as a 1st waveform shaping circuit and its ringing is removed to obtain the output of the envelope waveform of the magnetron oscillation output. This output is passed through a 2nd waveform shaping circuit 10 which generates a main bang suppressor signal and set to the specific level value by the level setting circuit 11, and this signal is applied to a reception part 6 as the main bang suppressor signal.</p> |
