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

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.

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...

AI Technical Summary

Problems solved by technology

The traditional improved genetic algorithm and matrix mapping method propose to convert the array element interval constraint into Chebyshev constraint, but in actual operation, only the array element interval between the same row or the same column is considered, and the array element interval between different rows and columns cannot be guaranteed Satisfy the constraint requirements, it is easy to produce an infeasible solution that cannot satisfy the constraint conditions, resulting in mutual coupling between array elements and reducing antenna performance

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