FIELD: physics.
SUBSTANCE: detector has a first and a second microwave mixer, a heterodyne, a transmitting and a receiving antenna, a master generator, an intermediate frequency amplifier, a first and a second multiplier, a -45° phase changer, a +45° phase changer, a first and a second low frequency amplifier, a first and a second comparator with a reference voltage unit, a first and a second pulse counter with a count interval generator, a detection signal generator, connected to each other in a certain manner.
EFFECT: improved characteristics of detecting people from their breathing or heartbeat.
1 dwg
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