Radiation characteristic correction method and system of curved surface array
A radiation characteristic and correction method technology, which is applied in the field of radiation characteristic correction of curved surface arrays, can solve problems such as poor phase compensation effect, achieve a wide range of applications, improve phase compensation effect, and excellent phase compensation effect
Pending Publication Date: 2022-07-12
NAT UNIV OF DEFENSE TECH
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Problems solved by technology
The curved surface array antenna belongs to a typical conformal array antenna. However, in the process of realizing the present invention, the inventor found that the traditional projection method still has a poor phase compensation effect in the face of the problem of correcting the radiation characteristics of the curved surface array antenna. question
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[0033] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.
[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0035] The embodiments of the present invention will be describe...
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The invention relates to a radiation characteristic correction method and system of a curved surface array. The method comprises the following steps: determining two array elements closest to an array center on the curved surface array as correction base points; calculating the array element projection position of each array element on the curved surface array after projection based on the correction base point; after projection, the array element spacing on the curved surface array is the same as the array element spacing on the equal-length uniform planar array; acquiring an array element real position of each array element on the curved surface array; calculating the difference between the real position of each array element and the projection position of the corresponding array element to obtain the projection position error of each array element on the curved surface array; and performing phase compensation processing on a directional diagram of the curved surface array by using the projection position error of each array element to obtain a directional diagram of the curved surface array after radiation characteristic correction. By adopting the improved projection method, phase compensation can be carried out on a uniform curved surface array bent at any curvature, an array directional diagram close to the performance of a planar array is obtained, and the phase compensation effect on the curved surface array antenna is remarkably improved.
Description
technical field [0001] The invention belongs to the technical field of antenna signal processing, and relates to a radiation characteristic correction method and system of a curved array. Background technique [0002] With the continuous development of antenna technology, different types of antennas emerge one after another and are widely used in various high-tech fields. Conformal Antenna Array (CAA) refers to an antenna array that is consistent with the shape of the object, that is, the array elements are distributed on the surface of the electronic system carrier and make the array surface fit the shape of the carrier platform. called a conformal array. Compared with the traditional planar array antenna, the conformal array antenna can also take into account the aerodynamic characteristics of the carrier on the basis of meeting the performance requirements of the antenna itself, and due to the special installation position of the antenna, the space utilization rate in th...
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IPC IPC(8): G01R29/10
CPCG01R29/10
Inventor 蒋彦雯范红旗曾桂兰
Owner NAT UNIV OF DEFENSE TECH