DE2850814

A Doppler radar employing a common antenna for transmitting and receiving. A single sideband modulator (SSBM) is employed in the transmitting circuit to offset the rf reference frequency during transmit time and to discontinue offset during receiver ON time. Through a coupler and isolators an attenu...

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Bibliographische Detailangaben
Hauptverfasser:	HUBKA, THEODORE, PLEASANTVILLE, N.Y., US, SLATER, ROBERT WILLIAM, BARDONIA, N.Y., US
Format:	Patent
Sprache:	eng
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:	A Doppler radar employing a common antenna for transmitting and receiving. A single sideband modulator (SSBM) is employed in the transmitting circuit to offset the rf reference frequency during transmit time and to discontinue offset during receiver ON time. Through a coupler and isolators an attenuated portion of the rf reference signal is applied to the receiver mixer at gated intervals. The output of the mixer are signals which are free of undesired reflected transmitter signals.