An array method and an array system of a satellite communication-in-motion antenna array

An antenna array, communication-in-motion technology, applied in the field of satellite communications, can solve problems such as inability to guarantee constraint requirements, reduce antenna performance, and inability to meet constraints, so as to avoid infeasible solutions, improve search efficiency, and reduce mutual coupling effects. Effect

CN109037969AActive Publication Date: 2018-12-18ROCKET FORCE UNIV OF ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-12-18

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Abstract

The invention discloses an array method and an array system of a satellite communication-in-motion antenna array. The invention determines the dimension of the array element position matrix accordingto the size of the antenna array and the number of array elements, can simultaneously consider the distributable space of the array elements and the number of the array elements, and maximizes the degree of freedom of the array element distribution. The optimal abscissa random variable matrix, the optimal ordinate random variable matrix and the optimal weight matrix are obtained by solving the optimization function to minimize the maximum sidelobe level. As can be seen, the present invention provides a method for reducing the number of pixels with a minimum array element interval constraint, element total constraint, the problem of antenna size constraints is transformed into a stochastic optimization problem with only upper and lower bounds, Successfully converting the multi-constrained strip optimization problem into an unconstrained optimization problem can effectively improve the search efficiency of the antenna array, avoid the infeasible solution, thus effectively reduce the mutual coupling effect between the array elements, and reduce the cost, weight and power consumption of the antenna on the premise of ensuring the antenna performance.
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Description

technical field

[0001] The invention relates to the field of satellite communications, in particular to an array arrangement method and an array arrangement system for satellite communication antennas in motion. Background technique

[0002] Communication in motion is the abbreviation of mobile communication (that is, communication in motion), that is, communication between mobile objects or between mobile objects and fixed objects. In the military science and technology literature of the United States, broadband satellite "communication in motion" usually refers to broadband and multimedia satellite mobile communications between mobile stations and fixed stations, and between mobile stations and mobile stations, using geosynchronous orbit satellites as relays. The performance of the antenna directly affects the use of radio equipment. In order to meet people's increasing demand for communication quality and detection accuracy, array antennas are widely used in various wirel...

Examples

Embodiment 1

[0064] figure 1 It is a flow chart of a method for arranging an antenna array for satellite communications in motion provided by Embodiment 1 of the present invention. Such as figure 1 Shown, a kind of arrangement method of antenna array of satellite in motion, described arrangement method comprises:

[0065] Step 101: Obtain the size, number of array elements and minimum array element spacing of the antenna array, wherein the antenna array includes a plurality of array elements arranged in an array.

[0066] Step 102: Establish a plane Cartesian coordinate system for the location of the antenna array according to the size of the antenna array and the number of array elements.

[0067] In this embodiment, the number of array elements of the geometrically symmetrical rectangular planar array antenna is 4N, and the size of the antenna array is 2L×2H. N array elements are arranged in each quadrant, and the structure of the first quadrant is as follows figure 2 shown. Accord...

Embodiment 2

[0123] Figure 5 It is a structural block diagram of an array system for satellite communications antenna arrays in motion provided by Embodiment 2 of the present invention. Such as Figure 5 As shown, an array system of satellite antenna array in motion, the array system includes:

[0124] The data acquisition module 201 is used to acquire the size of the antenna array, the number of array elements and the minimum array element spacing, wherein the antenna array includes a plurality of array elements arranged in an array;

[0125] A plane Cartesian coordinate system determination module 202, configured to establish a plane Cartesian coordinate system for the position of the antenna array according to the size of the antenna array and the number of array elements;

[0126] Dimension and weight matrix determination module 203, configured to determine the dimension of the array element position matrix according to the size of the antenna array and the number of array elements,...