作者: Dennis M. Lewis , Wayne L. Cooper
DOI:
关键词: Radar display 、 Engineering 、 Electromagnetic radiation 、 Acoustics 、 Pulse repetition frequency 、 Pulse-Doppler radar 、 Doppler radar 、 Reflection (physics)
摘要: A system is provided that includes a Doppler radar unit transmits first electromagnetic wave having frequency, which test converts to electrical signal the frequency. The generates second and mixes signals produce third third, sum or difference frequency represents Doppler-shifted caused by reflection of target at distance from unit. back for calculation speed representing as function frequencies, may be calculated/certified.