Distance measurement method and device
作者： Tetsuji Uebo , Tadamitsu Iritani
DOI:
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摘要: A distance can be measured with a high resolution. frequency controller (7) controls voltage control oscillator (2) so as to change signal source f in range containing two central frequencies f1 and f2 transmits it progressive wave from an antenna (4) target (5). reflected by the (5) interfere each other form standing wave. power detector (6) detects corresponding amplitude of performs Fourier transform based on means (11, 12), respectively, thereby calculating radar image functions P1(x), P2(x). The d satisfies conditions that phase difference zero-crosses becomes maximum. zero cross point is linear function identified
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