RU2012127197A

RU2012127197A - USE OF TRANSFUNCTIONS TO SOLVE ANTENNA TASKS

Info

Publication number: RU2012127197A
Application number: RU2012127197/08A
Authority: RU
Inventors: Феликс Константинович Поволоцкий; Татьяна Павловна Сидорова
Priority date: 2012-06-29
Filing date: 2012-06-29
Publication date: 2014-01-10
Also published as: RU2580443C2

Abstract

Метод определения параметров антенны многоканальной радиолокационной станции, в которой сигналы, поступающие по каждому из каналов, оцифровывают, отличающийся тем, что, с целью повышения разрешающей способности антенны и увеличения точности пеленгации целей, находят параметр антенны, определяемый как сумма действительной (мнимой) части отношения двух диаграмм направленности, полученных от различных участков антенны и абсолютного значения этой части, называют его трансфункцией и с помощью трансфункций путем их перемножения ограничивают до требуемой величины область исследуемого пространства,если S(θ,φ), IS(θ,φ) - трансфункции, i≠j,тоS(θ,φ)=real(D(θ,φ)/D(θ,φ))+abs(real(D(θ,φ)/D(θ,φ))),IS(θ,φ)=imag(D(θ,φ)/D(θ,φ))+abs(imag(D(θ,φ)/D(θ,φ))),D(θ,φ) - комплексная ДН либо одной, либо нескольких частей раскрыва антенны,D(θ,φ) - комплексная ДН другого сочетания частей полотна антенны,θ - угол места, φ - азимутальный угол.A method for determining the antenna parameters of a multichannel radar station, in which the signals received from each channel are digitized, characterized in that, in order to increase the resolution of the antenna and increase the accuracy of direction finding, the antenna parameter is determined as the sum of the real (imaginary) part of the ratio of two radiation patterns obtained from different parts of the antenna and the absolute value of this part is called its transfunction and using transfunctions by multiplying them by limiting up to the desired value, the region of the space under study, if S (θ, φ), IS (θ, φ) are transfunctions, i ≠ j, then S (θ, φ) = real (D (θ, φ) / D (θ, φ )) + abs (real (D (θ, φ) / D (θ, φ))), IS (θ, φ) = imag (D (θ, φ) / D (θ, φ)) + abs (imag (D (θ, φ) / D (θ, φ))), D (θ, φ) is the complex pattern of either one or several parts of the aperture of the antenna, D (θ, φ) is the complex pattern of another combination of parts of the antenna sheet, θ is the elevation angle, φ is the azimuthal angle.

Claims

A method for determining the antenna parameters of a multichannel radar station, in which the signals received from each channel are digitized, characterized in that, in order to increase the resolution of the antenna and increase the accuracy of direction finding, the antenna parameter is determined as the sum of the real (imaginary) part of the ratio of two radiation patterns obtained from different parts of the antenna and the absolute value of this part is called its transfunction and using transfunctions by multiplying them by limiting dissolved to the desired value of the test region of space,

if S _{i, j} (θ, φ), IS _{i, j} (θ, φ) are transfunctions, i ≠ j,

then

S _{i, j} (θ, φ) = real (D _i (θ, φ) / D _j (θ, φ)) + abs (real (D _i (θ, φ) / D _j (θ, φ))) ,

IS _{i, j} (θ, φ) = imag (D _i (θ, φ) / D _j (θ, φ)) + abs (imag (D _i (θ, φ) / D _j (θ, φ))) ,

D _i (θ, φ) is the complex pattern of either one or several parts of the antenna aperture,

D _j (θ, φ) is the complex pattern of another combination of parts of the antenna web,

θ is the elevation angle, φ is the azimuthal angle.