Comprehensive method of dual-band mixed sparse array beam
Through an improved genetic algorithm to optimize the dual-band hybrid sparse array, the shortcomings of traditional algorithms in the optimization of array element position and excitation method are solved, and low secondary lobe level and efficient engineering applications are achieved.
CN119740485AActive Publication Date: 2025-04-01THE 54TH RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION
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Patent Information
- Application Number
- CN202411871558.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2044-12-18
AI Technical Summary
Technical Problem
In dual-band hybrid sparse arrays, traditional optimization algorithms are difficult to effectively optimize the array element position and excitation method, resulting in an increase in the secondary lobe level of the pattern and a high complexity of comprehensive optimization.
Method used
Improved genetic algorithms improve algorithm efficiency through the improvement of selection operators, cross operators and variant operators, and adopt the idea of sub-array interpolation and space placement and dual-band serial optimization to reduce optimization complexity.
Benefits of technology
The problem of dual-band hybrid sparse array has been solved better, the secondary lobe level is reduced, and the value of engineering application is improved.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention discloses a synthesis method of a dual-band mixed sparse array beam, and belongs to the technical field of array antenna beam synthesis. Comprising the following steps: (1) setting parameters; (2) iterative optimization of an A-band sparse array improved genetic algorithm; (3) carrying out algorithm post-processing to obtain array mapping and array performance index parameters of an array plane; (4) B-band sparse array optimization pretreatment: obtaining a B-band double-array-plane index matrix according to the A-band array plane sparse matrix and B-band double-array-plane array area distribution; (5) the process is the same as that in the step (2); (6) the process is the same as that in the step (3); and (7) obtaining array plane arrangement of the dual-band mixed sparse array according to the array mapping of the A-band array plane and the B-band dual-array plane. According to the method, subarray insertion placement and dual-band serial optimization are adopted, the problem of dual-band mixed sparse array arrangement is well solved, and the method has high engineering application value.
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