,申请号JP19990357058-传众专利搜索

申请公布号：JP3427084(B2)

申请号：JP19990357058

申请日期：1999.12.16

申请公布日期：2003.07.14

分类号：G01S13/40;G01S7/285;(IPC1-7):G01S13/40

主分类号：G01S13/40

摘要：<p>PROBLEM TO BE SOLVED: To provide a movement detecting method capable of grasping accurately the period, the velocity and the moving displacement (moving quantity) of reciprocating motion in order to detect a moving object and specify the movement thereof, and a device by using it. SOLUTION: The first to n-th oscillators 1 output different high-frequency signals. A selector 2 selects a single oscillator output signal. A power conditioner 3 distributes the oscillator output signal to a phase reference signal and a transmitted signal. A transmitting/receiving antenna 5 radiates the transmitted signal passing through a circulator 4 to the space, and receives a part of the transmitted signal reflected by the moving object. A phase comparator 6 executes phase comparison between the phase reference signal and the received signal. A filer 7 gives restriction of a frequency band to a phase comparison signal. An amplifier 8, a signal processing part 9 and a display part 10 amplify the phase comparison signal, and thereafter execute signal processing, and display a time-base waveform.</p>