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Array-beamforming-optimization

所屬分類通訊編程文檔
開發工具:C++
文件大小:1026KB
下載次數:66
上傳日期:2012-06-07 11:09:24
上 傳 者frankk
說明:  本文給出了一種利用幅相加權對陣列天線進行全局優化的方法。為了使天線的輻射波束形成給定的 方向圖,采用聯合應用DFP和BFGS公式的變度量算法對陣列天線各單元的饋電幅度和相位分布進行優化, 通過C++語言編程計算實現,從而使得優化后的陣列天線主波束形狀能夠與預給波束形狀相吻合,達到設計 要求。全局優化是本文的特色,它彌補了局部優化結果的精確度依賴于初始值的缺點,因而得以保證通過優 化得到的天線主波束與給定波束的主瓣相吻合,副瓣也得到有效控制。該方法具有快速收斂,計算量小等優 點,是一種解決陣列天線波束賦形問題的有效方法。
(In this paper, the amplitude and phase weighted array antennas for global optimization method. Order to make the antenna radiation beam to form a given pattern, using the combination of DFP and BFGS formula variable metric algorithm to optimize the amplitude and phase distribution of each cell of the array antenna feed, calculated through C++ language programming to achieve, which makes optimization array antenna main beam shape is consistent with the pre-to the beam shape to meet the design requirements. Global optimization is a feature of this article, it makes up for the shortcomings of the accuracy of the local optimization results depend on the initial value, and thus can be guaranteed through the optimization of the antenna main beam to coincide with the main lobe of a given beam, sidelobes also been effectively controlled . The method has fast convergence of computing and small volume, is a solution to the array antenna beamforming. )

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