METHOD FOR DETERMINING DISTANCE FROM UPPER-AIR RADIO PROBE Russian patent published in 2007 - IPC G01S13/95 H04Q9/14 

FIELD: radio engineering, namely radiolocation, possible use for determining inclination distance from upper-air radio-probes by radio-impulse methods, and also possible use for tracking distance to upper-air radio-probes.

SUBSTANCE: in accordance to invention, ground-based radiolocation station is used to dispatch query signal to an upper-air radio-probe, which, by means of ultra-regenerative transmitter-receiver is amplified and reemitted towards radiolocation station, where query and response signals are compared, delay times between them are determined and, on basis of delay time, distance to upper-air radio probe is determined. As query signal, coherent query radio impulses are used, which synchronize the radio impulse phase of ultra-regenerative transmitter-receiver. Comparison of query and response signals is realized by means of a phase detector.

EFFECT: decreased power of radiolocation station query signal transmitter, increased resistance of complex to interference and increased concealment of operation of ground-based radiolocation station.

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