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Registration Number

0217U001058, 0116U000815 , R & D reports

Title

The calculation and measurement technique of radar visibility characteristics for on-ground targets in near zone and effectiveness it's reducing with cloacking(the title).

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Head

Kolchigin Nikolay Nikolaevich,

Registration Date

19-01-2017

Organization

Kharkov National University named after V.N. Karazin

Description

Object of the research - civil and military complex shaped objects with or without cloaking. Aim of the work is to create new and develop already existed methods of calculations for complex shaped objects radar visibility on underlying surfaces. Aim of the study - for calculations of radiowaves scattering on complex shape object PO-SBR method is used. Results of work: in R&D Project the effective numerical (software) method was created for calculations of radio waves scattering on complex shape objects that are situated on different underlying surfaces with the help of modeling of scattering on the object, and on object situated on OEC and PEM mirrors. To characterize radiolocation visibility of the object and degree of its reduction while covering is used some radiolocation characteristics of the object are going to be used (specific RCS, RCS spread, etc.). This characteristics of the object are independent from radiolocation station characteristics, and can be used for detection probability estimation for different types of underlying surfaces, radiolocation stations and conditions of experiment. Methods of using such characteristics were developed and tested. For calculations of detection probability of the object for given radar resolution, approximation of RCS probability density with the help of sum of delta-functions was used. Such approximation allows to avoid errors caused by a large number of narrow emissions of backscattering pattern. Investigations of the optimal pitch determining backscatter diagram was provided for complex shape objects to a sufficiently accurate determination of the statistical characteristics of the visibility of the object.

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В. Хричов
М. Антюфєєва
М. Легенький
О. Масловський