RADAR DISTANCE METER Russian patent published in 2000 - IPC

FIELD: radio engineering. SUBSTANCE: device has generator of symmetrical triangle voltage, analog multiplier, modulator, receiving-transmitting microwave unit, directed coupler, antenna, amplifier of differential frequency signal, frequency meter, extreme value detector, generator of frequency references, control circuit, time interval discriminator, and integrator. Generator of frequency references with control circuit and extreme value detector provides stabilization of microwave signal frequency deviation and prevents phase drops in differential frequency signal. Time interval discriminator with integrator and analog multiplier stabilize part of modulation period. This results in possibility stabilization of average slope of microwave signal frequency alteration upon temperature changes and decreases sample error. EFFECT: increased precision of distance measurement in wide temperature range. 4 cl, 6 dwg