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Variable polarization monopulse radar target angle estimation method, system and device and medium

A monopulse radar, target angle technology, applied in the radar field, can solve the problems of polarization parameter measurement and angle estimation errors, and achieve the effect of improving accuracy

Active Publication Date: 2021-08-13
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the existing linear digital beamforming method will lead to errors in the polarization parameter measurement and angle estimation of the target

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  • Variable polarization monopulse radar target angle estimation method, system and device and medium
  • Variable polarization monopulse radar target angle estimation method, system and device and medium
  • Variable polarization monopulse radar target angle estimation method, system and device and medium

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Embodiment Construction

[0096] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention. For the step numbers in the following embodiments, it is only set for the convenience of illustration and description, and the order between the steps is not limited in any way, and the execution order of each step in the embodiments can be adapted according to the understanding of those skilled in the art sexual adjustment.

[0097] In the description of the present invention, multiple means two or more. If the first and the second are described only for the purpose of distinguishing technical features, it cannot be understood as indicati...

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Abstract

The invention discloses a variable polarization monopulse radar target angle estimation method, system and device and a medium. The method comprises the steps of acquiring target echo signals of four channels of a variable polarization monopulse radar; performing two kinds of nonlinear digital beam synthesis according to the target echo signals to obtain a first horizontal polarization component, a first vertical polarization component, a second horizontal polarization component and a second vertical polarization component of each channel, and generating a first high-resolution range profile and a second high-resolution range profile of each channel; determining a sum-difference signal pair of the four polarization channels according to the first high-resolution range profile and the second high-resolution range profile; and determining a target polarization scattering matrix according to the sum-difference signal pair, and estimating a target azimuth angle and a target pitch angle of each polarization channel. The method improves the accuracy of variable polarization monopulse radar target polarization parameter measurement and angle estimation, and can be widely applied to the technical field of radars.

Description

technical field [0001] The invention relates to the technical field of radar, in particular to a method, system, device and medium for estimating the target angle of a polarization-variable monopulse radar. Background technique [0002] At present, monopulse technology is a relatively mature technology, which can enable tracking radar to obtain strong anti-interference ability, and can also determine the direction of the target through the sum and difference pattern. In order to further suppress the interference and obtain the polarization information of the target at the same time, the full polarization detection technology is gradually introduced into the monopulse radar. [0003] Polarization includes H-horizontal polarization and V-vertical polarization, indicating the vibration direction of the electric field. Radar systems using H and V linear polarizations use a pair of symbols to represent the transmit and receive polarizations and can therefore have the following f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/02G01S7/41
CPCG01S7/024G01S7/418Y02A90/10
Inventor 张毅孙厚军李璋峰郑沛王啸东
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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