Quantum searcher searching mechanism-based circular ring array directional diagram comprehensive method

A pattern synthesis and searcher technology, applied in antenna arrays, instruments, calculation models, etc., can solve the problems of high side lobe level, time-consuming, and large number of array elements, reducing calculation time, wide application range, The effect of good performance indicators

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

The existing literature shows that the existing circular array pattern synthesis technology mainly optimizes the parameters of the pattern according to the given specific reference pattern. Although the structure of the circular array array is simple, the side lobe level generated by it is relatively high. The number of array elements required is relatively large, and the calculation time of intelligent algorithms used to solve such problems increases rapidly with the increase of the number of antenna elements and the size of the array, and it is very time-consuming to apply such algorithms to synthesize large-aperture arrays

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  • Quantum searcher searching mechanism-based circular ring array directional diagram comprehensive method
  • Quantum searcher searching mechanism-based circular ring array directional diagram comprehensive method
  • Quantum searcher searching mechanism-based circular ring array directional diagram comprehensive method

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with accompanying drawing example, as figure 1 As shown, a kind of circular array pattern synthesis method based on quantum seeker search mechanism of the present invention design comprises the following steps:

[0037] Step 1, building a circular array model;

[0038] For a concentric ring array composed of M single-layer ring arrays with increasing radii, the radius of the mth ring is r m ,m=1,2,...,M, the number of array elements distributed on the mth ring is H m , the azimuth position of the hth array element on the mth ring is h=1,2,...,H m , the excitation amplitude and phase of the hth array element on the mth ring are respectively I mh and ψ mh , the angle of arrival of the received signal is (i.e. θ and are the pitch angle and azimuth angle of signal arrival respectively), then the array pattern expression of the concentric circular array is: Where k=2π / λ, j is a complex number un...

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Abstract

The invention provides a quantum searcher searching mechanism-based circular ring array directional diagram comprehensive method. The comprehensive method is realized by the steps of establishing a circular ring array model; performing initialization of a quantum searcher group; calculating the position of the quantum searcher and a fitness value of the quantum position; updating the searching step size and searching direction of the quantum searcher searching mechanism; updating the quantum position according to an evolution rule; calculating a fitness value in a new position of the quantum searcher, determining the individual historical optimal quantum position, and determining the global optimal quantum position; if the maximum number of iterations is reached, outputting the global optimal quantum position; and mapping the global optimal quantum position into a circular ring array parameter, and introducing a directional diagram function to obtain a corresponding normalized directional diagram. By combination with advantages of quantum calculation and the searcher searching mechanism, the method has the advantages of high searching speed and strong global searching capability.

Description

technical field [0001] The last method for synthesizing the pattern of an annular array involved in the present invention is specifically a method for synthesizing the pattern of an annular array based on a quantum searcher search mechanism. Background technique [0002] Array antennas have been widely used in satellite communications, sonar, radar, radio and television because of their advantages of easy to achieve high gain, low sidelobe and narrow beam pattern, easy to obtain multi-beam and realize beam scanning and shaping of specific complex beams. , navigation, radio astronomy, biomedical imaging, and electronic countermeasures. Array antennas are generally classified according to the arrangement of array elements. Linear arrays are the basic configuration of array antennas, but the scanning range of linear arrays is limited, and the main beam will be broadened as the scanning angle changes, while circular arrays can perform 360° Azimuth scanning can achieve uniform c...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/00G06N3/00
CPCG06N3/006H01Q21/00
Inventor 高洪元刘丹丹张晓桐刁鸣张世铂梁炎松侯阳阳刘子奇
Owner HARBIN ENG UNIV
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