DOPPLER RADAR TEST SYSTEM

Provided is a system (100) including a Doppler radar unit (102) transmitting a first electronic wave (106) having a first frequency. A test system (104) converts the first electronic wave into a first electric signal having the first frequency. The test system (104) generates a second electric signa...

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Bibliographische Detailangaben
Hauptverfasser:	WAYNE L. COOPER, DENNIS M. LEWIS
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING
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Beschreibung
Zusammenfassung:	Provided is a system (100) including a Doppler radar unit (102) transmitting a first electronic wave (106) having a first frequency. A test system (104) converts the first electronic wave into a first electric signal having the first frequency. The test system (104) generates a second electric signal having a second frequency, and mixes the first electric signal and the second electric signal for generating a third electric signal having a third frequency which is a sum or difference frequency. The third frequency presents a Doppler-shifted frequency caused by reflections of the first frequency (106) by a target dropped from the Doppler radar unit (102). The test system (104) converts the third electric signal into a second electric wave (108) having the third frequency, and retransmitting the second electronic wave to the Doppler radar unit (102) for calculation of speed of a target with a function of the first frequency and the third frequency, thereby calibrating/detecting the Doppler radar unit (102).