| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent accurate radar information from becoming impossible to be acquired owing to gain fluctuation of an amplifier in a radar device caused by a temperature change in the radar device or the like. <P>SOLUTION: This device is provided with a means 10 for detecting the gain fluctuation of the amplifier in the radar device 1 based on a beat signal BT acquired by mixing between a transmitted wave R0 and a reflected wave R1, and is equipped with a threshold changing means 20 for changing up and down an operation threshold TH in a signal processing part 8 for calculating radar information by using the beat signal BT as an input corresponding to the magnitude of the detected gain fluctuation. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
