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Synthetic Arrangement Method of Distributed Nested Circular Array Based on Ant Colony Algorithm

An ant colony algorithm and distributed technology, applied in antenna arrays, calculations, calculation models, etc., can solve problems such as high side lobe level, large amount of calculation, slow algorithm convergence speed, etc., to achieve flexible array layout and reduce peak side effects Flap level, the effect of overcoming terrain problems

Active Publication Date: 2021-09-03
HARBIN INST OF TECH
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Problems solved by technology

[0005] The present invention aims to solve the problem that the sparse array layout method used by the existing antennas has limited array element layout area environment, large amount of calculation in the working process, and slow algorithm convergence speed, while the array planning and array element layout method of nested arrangement has a great impact on the array. The optimization effect of the pattern is poor, and its side lobe level is high. Now we provide a distributed nested circular array comprehensive array method based on the ant colony algorithm.

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  • Synthetic Arrangement Method of Distributed Nested Circular Array Based on Ant Colony Algorithm
  • Synthetic Arrangement Method of Distributed Nested Circular Array Based on Ant Colony Algorithm
  • Synthetic Arrangement Method of Distributed Nested Circular Array Based on Ant Colony Algorithm

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specific Embodiment approach 1

[0048] Specific implementation mode one: refer to Figure 1 to Figure 5 This embodiment is described in detail. The comprehensive array method of distributed nested circular array based on ant colony algorithm described in this embodiment optimizes the position of the array elements of distributed nested circular array through ant colony algorithm, and uses the direction diagram The peak sidelobe level is a fitness function, and the optimal solution for the position of the array element that meets the requirements is found, which specifically includes the following steps:

[0049]Step 1: Establish a distributed nested circular array model, which includes N nested circular arrays with a radius of R and a total of T array elements. Each nested circular array includes M actual array elements and T-M virtual arrays elements, and each nested circular array includes two levels of sub-arrays, the first level of sub-arrays includes M 1 array elements with an array element spacing of ...

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Abstract

The invention discloses a method for comprehensive arrangement of distributed nested circular arrays based on an ant colony algorithm, and relates to the technical field of antenna optimization arrangement. The present invention aims to solve the problem that the sparse array layout method used by the existing antennas has limited array element layout area environment, large amount of calculation in the working process, and slow algorithm convergence speed, while the array planning and array element layout method of nested arrangement has a great impact on the array. The optimization effect of the pattern is poor, and its side lobe level is high. The present invention provides a distributed nested circular array comprehensive array method based on the ant colony algorithm with sparse distribution of sub-arrays and sparse array elements. The algorithm optimizes the optimization model with all its heart. Not only can the terrain problem be overcome, the array can be arranged flexibly, but also the peak side lobe level of the antenna array can be significantly reduced by adopting the array arrangement of the present invention under the premise that the number of array elements is fixed.

Description

technical field [0001] The invention belongs to the technical field of antenna optimal arrangement. Background technique [0002] The main purpose of optimizing the antenna array is to obtain excellent performance indicators, such as the peak side lobe level and main lobe width of the antenna, so as to meet the requirements of the electronic system for antenna array design. The optimization of antenna array mainly includes array shape design (such as linear array, circular array, etc.) and array element position design (such as sparse distribution, nesting, etc.). For a sparsely arranged antenna array, how to arrange the positions of the elements so that the pattern of the antenna array has the minimum peak side lobe level is the main problem to be solved in the antenna array technology. [0003] Most of the current antenna arrays are array structures in which array elements are evenly arranged or in which array elements are sparsely arranged within the aperture range. Spa...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06N3/00H01Q21/00
CPCG06N3/006G06F30/20H01Q21/0087
Inventor 毛兴鹏赵宏阳侯煜冠
Owner HARBIN INST OF TECH
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