| 摘要 |
<p>PURPOSE:To remove a seek clutter without erasing a target signal by providing simultaneously an STC (sensitive time control) voltage generator for removing the seek clutter and an STC voltage generator for preventing erasing of a signal caused by excessive erasing of the seek clutter. CONSTITUTION:The STC device is provided with an IF amplifier 1 amplifying a radar receiving signal, a voltage control attenuator 2 controlling a gain of the amplifier 1, the first STC voltage generator 3 applying a control voltage to the attenuator 2 in order to erase a seek clutter, the second STC voltage generator for preventing erasing of a signal by erasing the seek clutter too much by the generator 3, and an adder 5. By adding an output of the generator 3 to an output of the generator 4 by the adder 5, the erasing of the signal caused by excessive erasing of the seek clutter can be prevented.</p> |
