Method for fast determining tolerance of active phased array antenna structure

A phased array antenna, determination method technology, applied in special data processing applications, instruments, electrical digital data processing and other directions, can solve the problems of antenna structure tolerance, difficult to quickly determine and assign, etc.

Inactive Publication Date: 2014-04-02
XIDIAN UNIV
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Problems solved by technology

[0006] The purpose of the present invention is to propose a method for quickly determining the structural tolerance of an active phased array antenna, so as to effectively solve the problem that it is difficult to quickly determine and allocate the structural tolerance of the active phased array antenna during the design of the structural scheme of the active phased array antenna. Formulation and distribution of source phased array antenna structure processing technology and installation accuracy, and evaluation of antenna structure scheme

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  • Method for fast determining tolerance of active phased array antenna structure
  • Method for fast determining tolerance of active phased array antenna structure
  • Method for fast determining tolerance of active phased array antenna structure

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Embodiment Construction

[0067] Concrete steps of the present invention (referring to figure 1 )as follows:

[0068] Step 1, determine the information of the radiation unit of the antenna front.

[0069] 1.1. Get the antenna length L x , width L y , working frequency f and wavelength λ information, obtain the row number M, column number N of the front radiation unit and the spacing d of the radiation unit in the x and y directions x , d y information (see figure 2 ); the number of the radiation unit in the array is (i, j); where i, j are the numbers of the radiation unit in the x and y directions respectively, and the lower left corner of the array is the starting number, that is, the number at the lower left corner of the array The radiation unit number is (0,0), and this is also the coordinate origin of the coordinate system Oxy located in the array; the array normal is the z-axis of the coordinate system Oxyz;

[0070] 1.2. The above-mentioned antenna array radiating unit information is comp...

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Abstract

The invention belongs to the technical field of radar antennas, and specifically relates to a method for fast determining tolerance of an active phased array antenna structure. The method comprises the steps of: 1, determining information of an antenna array surface radiation unit; 2, obtaining a height error of the array surface radiation unit; 3, obtaining a position mounting error of the array surface radiation unit; 4, calculating a phase error of an antenna port; 5, calculating electric field distribution of a far field of the antenna; 6, calculating an electric performance parameter related to the antenna; 7, judging and calculating whether the electric performance of the antenna meets the requirements under the current structure tolerance condition according to the requirements of tactical and technical targets, if not, carrying out the step 8 and the step 9, and if so, directly turning to the step 10, wherein the tolerance of the position and the height of the current radiation unit is the fast determined tolerance of the antenna structure. The problem of difficulty in fast determining the tolerance on the distribution antenna structure is effectively solved.

Description

technical field [0001] The invention belongs to the technical field of radar antennas, and in particular relates to a method for quickly determining structural tolerances of active phased array antennas, which can be used to guide the rapid determination of structural tolerances of active phased array antennas and the evaluation of structural schemes. Background technique [0002] Active phased array antenna is a new technology that has been developing rapidly in recent years. It can meet the requirements of antenna high performance and high survivability at the same time, and it is also a key technology to meet the development needs of modern radar. The Air Police-2000 early warning aircraft developed by our country and officially installed in 2007 is the number one national military key project of the Air Force Tianzi No. 1. Its most critical breakthrough is that it is equipped with an active phased array radar. With the increasingly urgent demand for increasing the operat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
CPCY02E60/76Y04S40/22Y02E60/00
Inventor 王从思康明魁段宝岩王伟徐慧娟王猛黄进保宏朱敏波陈光达
Owner XIDIAN UNIV
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