| 摘要 |
PURPOSE:To equalize the luminance of a picture element of the whole area in a foot print by normalizing a received signal by using a preset execution antenna gain function. CONSTITUTION:A received signal received by an antenna 1 is received by a receiver 4, processed successively by a pulse compressing processing device 5, a range gate device 6 and an azimuth compressing processing device 7, and thereafter, inputted to a multiplier 18. An execution antenna gain function is preset in advance to a weighing coefficient setting device 19, and it is inputted to the multiplier 18 through an attenuator 20. Normalization to a transmitting electric power of each picture element is executed by the multiplier 18. An output of the multiplier 18 is supplied to a display device 8. Normalization corresponding to a gain variation in the range direction is executed by controlling a value of the attenuator 20 by a controller 21 and changing an attenuation quantity. |
