FIELD: radio engineering.
SUBSTANCE: measurement of aircraft flight altitude is carried out by changing resolution characteristics by distance of a complicated probing radar signal. A radar meter of low heights comprises a weakly directional transceiving antenna, a circulator, a high frequency generator, a modulator, a mixer, a narrow band filter, a frequency indicator, a frequency detector, a clock pulse generator, a pulse accumulator and a logical device "AND", which are connected to each other in a certain manner. At the same time first inputs of the high frequency generator, the clock pulse generator and the height indicator are connected to a terminal, to which a "Start" command is sent.
EFFECT: ability to measure low heights at a final stage of aircraft landing onto a lengthy surface.
2 dwg
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