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Sub-array phased array antenna pattern synthesis method based on Drosophila algorithm

A phased array antenna and pattern synthesis technology, applied in antennas, antenna arrays, computing and other directions, can solve the problems of easy premature convergence, local optimization, and many control parameters, so as to improve the side lobe suppression ability and improve the stability. performance, reducing the effect of control parameters

Active Publication Date: 2019-01-11
XIDIAN UNIV +1
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Problems solved by technology

However, the disadvantages of this method are: moreover, due to the large number of control parameters in this method, it is easy to fall into local optimum and premature convergence due to improper parameter setting in the iterative process.

Method used

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  • Sub-array phased array antenna pattern synthesis method based on Drosophila algorithm
  • Sub-array phased array antenna pattern synthesis method based on Drosophila algorithm
  • Sub-array phased array antenna pattern synthesis method based on Drosophila algorithm

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Embodiment Construction

[0043] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0044] refer to figure 1 , the steps of the present invention are further described in detail.

[0045] Step 1, establish a phased array antenna model.

[0046] In the xoy coordinate system, the x-axis and the y-axis are used as the sides of the rectangle respectively, according to the total number of array elements on the x-axis and the total number of array elements on the y-axis of the phased array antenna, and the distance between the array elements along the x-axis and y-axis in turn Place the array element to get the rectangular phased array antenna model.

[0047] Step 2, divide the sub-array.

[0048] Using the X algorithm described below, the sub-arrays are divided into the matrix phased array antenna model without overlapping.

[0049] Step 1: For the 8-element L-shaped sub-array, rotate 90 degrees clockwise to obtain four types of sub-arrays, a...

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Abstract

The invention provides a sub-array phased array antenna pattern synthesis method based on Drosophila algorithm, which is mainly used for solving the problems that the prior art is prone to have more control parameters in the side lobe suppression process of the sub-array phased array antenna pattern, and is prone to fall into local optimization and premature convergence due to improper control parameters. A sub-array level phased array antenna population is taken as a drosophila population, and the particle collapse-orthogonal cross mechanism is adopted to update the sub-array normalized excitation value of the Drosophila population. The global optimal excitation value and the global optimal fitness value are obtained by an annealing simulation method. The method reduces the control parameters, improves the stability of the side lobe suppression method, and improves the side lobe suppression performance of the sub-array phased array antenna pattern amplitude.

Description

technical field [0001] The invention belongs to the field of antenna radar, and further relates to a sub-array-level phased array antenna pattern synthesis method based on the fruit fly algorithm in the technical field of antenna radar. The invention can be used to suppress the side lobe of the antenna pattern of the sub-array level phased array, thereby improving the performance of the antenna pattern. Background technique [0002] In the phased array antenna system, the side lobe performance of the antenna is one of the most important performance indicators of the system. With the rapid development of the radar antenna system. The radar antenna system puts forward higher requirements on the performance of the phased array antenna, which makes the planar array antenna develop towards large-scale and digitalization. However, due to the limitations of system cost, implementation feasibility and device level, the cost of designing a complete digital receiving channel for each...

Claims

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Application Information

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IPC IPC(8): G06F17/50G06N3/00H01Q21/00H01Q3/30
CPCG06F30/20G06F2111/06G06N3/006H01Q3/30H01Q21/00
Inventor 李文涛张昱东叶秀眺崔灿史小卫
Owner XIDIAN UNIV
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