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A Sparse Method for Loop Antenna Arrays Based on the Evolution Mechanism of Multi-objective Quantum Spider Swarm

A loop antenna and multi-target technology, applied in the field of smart array antennas, can solve problems such as not seen before

Active Publication Date: 2021-01-12
HARBIN ENG UNIV
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Problems solved by technology

The designed multi-objective quantum spider swarm evolution method is a new method to solve the discrete multi-objective problem. There is no relevant report in the existing literature, let alone the application of the discrete multi-objective quantum spider swarm evolution mechanism to the circular array sparse project. difficult reporting

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  • A Sparse Method for Loop Antenna Arrays Based on the Evolution Mechanism of Multi-objective Quantum Spider Swarm
  • A Sparse Method for Loop Antenna Arrays Based on the Evolution Mechanism of Multi-objective Quantum Spider Swarm
  • A Sparse Method for Loop Antenna Arrays Based on the Evolution Mechanism of Multi-objective Quantum Spider Swarm

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specific Embodiment

[0095] Step 1: Build a planar 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 Assume that the distance from the origin of the coordinates to an observation point in the far zone is r, and 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:

[0096]

[0097] Among them, C is a constant, j is an imaginary number unit, k=2πa / λ is a wave number, and λ is a wavelength, is the element excitation, where I n is the excitation amplitude, α n is the excitation phase. For the expression of the far-field radiation field strength, the amplitude can be approximated Phase is the location coordinates into the phase, there is Then the expression of the radiation field s...

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Abstract

The invention provides a loop antenna array spare method based on a multi-objective quantum spider population evolution mechanism. The method comprises the following steps that: establishing a loop antenna array spare model, setting a proper system parameter, and initializing the quantum position and the [0,1] coding position of each spider in a population in a solution space; designing a multi-objective fitness function; calculating the weight of each spider in the population, and dividing the gender of the spiders according to the weight; according to the initial population, generating an initial elite solution set; selecting a global optimal solution and a suboptimum solution from the elite solution set; then, independently updating the quantum positions of the female spider and the male spider, and converting the quantum position into the [0,1] coding position through a measurement way; updating the elite solution set, and updating the weights of all spiders in the population; finally, judging whether a maximum iteration number is achieved or not is judged, and outputting the elite solution set if the maximum iteration number is achieved; and otherwise, returning to carry out iteration. By use of the method, a problem that high-dimension discrete multi-objectives are subjected to spare construction by a multi-objective loop antenna array is solved.

Description

technical field [0001] The invention relates to a ring antenna array sparse method based on a multi-objective quantum spider swarm evolution mechanism, and belongs to the technical field of smart array antennas. 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. ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06N3/00G06F30/20G06F111/06
CPCG06N3/006G06F30/367G06F2111/06
Inventor 高洪元张晓桐刁鸣刘子奇白永珍侯阳阳苏雨萌马雨微
Owner HARBIN ENG UNIV
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