RADAR METHOD OF DETERMINING PARAMETERS OF LARGE-SCALE WAVE ON WATER SURFACE Russian patent published in 2013 - IPC G01S13/95 

FIELD: radio engineering, communication.

SUBSTANCE: radar method of determining parameters of a large-scale wave on a water surface using a radio altimeter involves emitting probing pulses vertically downwards towards the water surface (to the nadir), receiving probing pulses reflected from the water surface, recording their shape and determining the height of the large-scale wave on the water surface from the inclination of the leading edge of the reflected pulse. Measurements are taken using an aircraft-mounted compact satellite radio altimeter with a knife-edge beam directed along the direction of flight, and the inclination of the trailing edge of the reflected pulse, taking into account the altitude of the aircraft and the antenna beam width, is used to determine variance of the inclination of the large-scale wave along the direction of flight, and the average length of the surface wave along the flight direction is determined using the measured variance of inclination and height of the large-scale wave on the water surface.

EFFECT: faster determination of parameters of a large-scale wave on a water surface from an aircraft.

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