METHOD FOR IDENTIFYING UNDERWATER HYDRODYNAMIC SOURCE (HDS) BY QUASI-MIRROR RADAR IMAGE OF SEA SURFACE Russian patent published in 2022 - IPC G01S13/90 

FIELD: radio engineering.

SUBSTANCE: invention relates to radio engineering; it can be used to identify a source moving under water. Two-position sounding of a sea surface with a quasi-mirror side-view radar with a synthesized aperture is used. The possibility of identifying small variations of an average slope of the surface with averaging of a random field of small wave slopes on a site of a significant size (with preliminary suppression of a harmonic field of slopes of energy-carrying wind waves) allows one to detect slopes of a “displacement hump” that arise above the moving source. Identification of the source with the determination of the speed and direction of its movement can be carried out by forming several consecutive frames of radar images - for example, using small spacecrafts.

EFFECT: increase in the width of the viewing area of the sea surface when searching and detecting underwater hydrodynamic sources.

1 cl, 4 dwg