Annular antenna array sparse method based on quantum chicken evolution mechanism

A loop antenna and quantum technology, applied in design optimization/simulation, calculation models, biological models, etc., can solve problems such as variation and high side lobes of the pattern, and achieve reduced failure rate, fast convergence speed, and high convergence accuracy Effect

Active Publication Date: 2018-02-02
HARBIN ENG UNIV
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Problems solved by technology

However, the periodic thinning of antenna elements will cause very high side lobes in the pattern. After sparseness, the effect of the antenna array pattern will be much worse than when it is full.

Method used

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  • Annular antenna array sparse method based on quantum chicken evolution mechanism
  • Annular antenna array sparse method based on quantum chicken evolution mechanism
  • Annular antenna array sparse method based on quantum chicken evolution mechanism

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Embodiment Construction

[0058] The following examples describe the present invention in more detail.

[0059] Such as figure 1 As shown in the process flow, the steps of the sparse method of the loop antenna array based on the quantum chicken flock evolution mechanism of the present invention are as follows:

[0060]Step 1: Establish a sparse model of the loop antenna array. For a uniform single circular array in the xoy plane, the center of the circle is the coordinate origin, and the radius is a, the rotation angle between the nth array element and the coordinate origin and the x-axis is Its location coordinates are The position vector is Assuming that the distance from the coordinate origin to an observation point in the far zone is r, the unit vector in this direction is The distance from the nth array element to the observation point is R n , then the far field radiation field strength of the array element is:

[0061]

[0062] Where C is a constant, j is the imaginary unit, k=2πa / λ...

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Abstract

The invention provides an annular antenna array sparse method based on a quantum chicken evolution mechanism. The method comprises the following steps that: 1: establishing an annular antenna array sparse model; 2: setting an initial parameter; 3: designing a fitness function; 4: calculating the fitness value of each chick in a population, distinguishing the category of the chicken, and dividing sub-populations; 5, 6, and 7: independently constructing the quantum vector rotation angle update formula of roosters, hens and chicken, updating the quantum vector rotation angle, and updating a quantum position; 8: through a measurement way, converting into a [0,1] coding position, calculating the fitness value of the [0,1] coding position, and updating the individual historical optimal solutionand the global optimal solution of each chick; and 9: judging whether a maximum iteration is achieved or not. The method is higher in rate of convergence and higher in accuracy of convergence, and hasa good spare effect on solving the problem of annular antenna array sparse construction, the complexity and the cost of antenna array system are greatly lowered, and an expectant requirement is achieved.

Description

technical field [0001] The present invention relates to a sparse method for smart array antennas, in particular to a sparse method for loop antenna arrays. Background technique [0002] With the rapid development of science and technology in recent years, the requirements for antenna technology in various fields are also increasing. In order to make the antenna meet the requirements brought by the rapid development of science and technology, the antenna technology has risen and developed rapidly, and many new antennas have emerged, including antenna arrays. The antenna array is to place many antenna elements in a certain arrangement, so that their radiation field vectors are superimposed to obtain a total radiation field to meet the high gain and high directivity requirements in practical applications. The excellent effect shown by the huge antenna array makes the antenna array an indispensable part in some projects. [0003] In some radar and satellite antenna systems, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06N3/00
CPCG06N3/006G06F30/18G06F30/20
Inventor 高洪元张晓桐侯阳阳刁鸣张世铂池鹏飞刘子奇苏雨萌王宇
Owner HARBIN ENG UNIV
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