| 摘要 |
<p>PURPOSE:To detect the correct frequency, pulse width, and amplitude values by controlling inputs when multiple pulse trains are concurrently inputted in a pulse detecting circuit detecting the pulse trains from received radar waves. CONSTITUTION:When multiple pulse trains are inputted to an input terminal 1, a band rejection filter(BRF) 6 prohibits the transit of the pulse trains in the specific frequency range specified from an analyzing circuit 7, an instantaneous frequency measurement(IFM) receiving circuit 2 detects the frequency of the pulse train passing through the BRF 6, a radio wave data detecting circuit 3 detects the radio wave data such as the pulse arrival time, pulse width, and amplitude values of the pulse train passing through the BRF 6, and a pulse train memory circuit 4 correctly rewrites the radio wave data detected by the radio wave data detecting circuit 3 in response to the frequency detected by the IFM receiving circuit 2 and outputs the data from an output end 5 while accumulating them for a fixed period.</p> |
