| 摘要 |
PURPOSE:To acquire only a useful radio wave signal while removing only a reflected wave signal due to an unnecessary target effectively, by inputting the output of a range and azimuth arithmetic part, reference pulse signal, scanning speed signal, and a trigger pulse, and removing the receive reflected wave based upon targets in a received reflected wave removal area from the received reflected wave. CONSTITUTION:When a scanner azimuth thetas is P-P', data Tt(B) up to range Rt are all ineffective and to be rejected. This range Rt is exactly the R of the data R-theta calculated by an arithmetic part. Therefore, to remove a received signal in a reflected wave removing area arranged optionally, an output theta of the arithmetic part 11 which coincides with thetas obtained by a gain signal output part 12 is selected and the input gain of an intermediate frequency amplifier is set to zero or minimized for the time (t) of R of data theta as shown in the figure (C) to obtain a signal D. |
