FM radar system
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United States of America Patent
Stats
-
Feb 29, 2000
Grant Date -
N/A
app pub date -
Mar 30, 1998
filing date -
Apr 1, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A transmission channel selection controller intermittently energizes transmission amplifiers indicated by transmission channel information, based on a modulation signal supplied from a modulation signal generator, to modulate an FM signal. The modulated FM signal is radiated as a beam from transmission antennas. When the beam is reflected as an echo beam by an object, the echo beam is received by reception antennas which supply a reception signal to reception amplifiers. A first mixer mixes the FM signal with the amplified reception signal, producing a modulated beat signal which is a beat signal representing the distance up to the object and modulated by the frequency of the modulation signal. A second mixer mixes the modulated beat signal with the modulation signal thereby demodulating the modulated beat signal into the beat signal.
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