RU2212682C2 - Procedure establishing effective area of dispersion of targets in flight - Google Patents

Abstract

FIELD: radiolocation, development and testing of radars. SUBSTANCE: proposed procedure consists in irradiation of target 1 with sought-for effective area of dispersion σ_s.f and target 2 with known effective area of dispersion σ_kn, from airborne radar station of interceptor in testing flight, in reception of reflected signals from targets 1 and 2 with the aid of same airborne radar station of interceptor, in determination of maximum detection range

of target 1 and

of target 2 in process of closing with targets 1 and 2 by airborne indicators. In this case trajectory of flight of interceptor and target 1 are kept invariable in process of closing. Flight is executed with energy potential of airborne radar of interceptor artificially diminished by value ΔL, computed by mathematical expression and sought-for effective area of dispersion σ_s.f is calculated by another mathematical expression. EFFECT: raised authenticity of determination of effective area of dispersion of targets in flight. 2 dwg

Description

 Description text in facsimile form (see graphic part). Tsh

Claims (1)

The method for determining the effective dispersion area (EPR) of targets in flight, which consists in the fact that using an on-board radar station (interceptor radar) of an interceptor in a test flight simulating the interception of target 1 in opposite directions, irradiate target 1 with the desired EPR-σ _lawsuit , flying at the same height as the interceptor, using the same radar of the interceptor, they receive the reflected signal from target 1 and determine, in the process of approaching with goal 1, the maximum detection range D ' _{1 of} target 1 using the on-board indicators, and the trajectory movement of the interceptor aircraft and the targets 1 in the convergence remains unchanged, characterized in that during the test flight using radar interceptor aircraft irradiated target 2 with a known EPR-σ _keV are received by the same ESBL interceptor plane reflected from the target 2 signals, determine in the process of approaching goal 2 using on-board indicators the maximum detection range D ' _{2 of} target 2 with the known EPR-σ _iz , and the flight is carried out with artificially reduced energy potential of the radar-interceptor aircraft on ΔL calculated by the formula
ΔL = 40lgД-40lg2 (R + H) sinφ ′, dB,
where D is the longest of the maximum detection ranges D ₁ and D _{2 of} targets 1 and 2, respectively, obtained in flight tests with radar of an interceptor that is not subject to the operation of reducing the energy potential, i.e., D = D ₁ , if D ₁ > D ₂ , D = D ₂ , if D ₂ > D ₁ ;
H - the height of the targets and the interceptor;
φ ′ is the artificially specified minimum angle of observation of the target with a larger detection range;
R is the radius of the Earth,
in this case, the desired EPR-σ _{claim of} goal 1 is calculated by the formula

Where

- maximum detection ranges of targets 1 and 2, respectively, obtained in a test flight with artificially reduced energy potential of the radar-interceptor aircraft and averaged over the results of a series of the same type of test flights.

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