DEVICE TO DETECT MOVING OBJECT Russian patent published in 2013 - IPC G01S13/56 

FIELD: radio engineering, communication.

SUBSTANCE: device to detect a moving object comprises the following components connected to each other in a certain manner - a microwave balance mixer, the first and second reference generators, a transmitting and receiving antennas, a clock oscillator, a Doppler mixer, an amplifier of the first intermediate frequency, the first and second multipliers, the first and second amplifiers of the second intermediate frequency, the first and second phase detectors, a low noise amplifier, a rejector filter, a low frequency amplifier, a limiter, the limitation level of which is set by an additional integrator, an amplitude detector, an integrator, the first comparator with the first unit of reference voltage, a detection signal shaper, the second comparator with the second unit of reference voltage, the first and second frequency dividers into two, the first and second filters of the doubled second intermediate frequency.

EFFECT: higher temperature stability of detection characteristics.