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| 指向性综合的一般方法 | |
| 引用本文： | 兰军. 指向性综合的一般方法[J]. 声学学报, 1983, 8(4): 210-219. DOI: 10.15949/j.cnki.0371-0025.1983.04.003 |
| 作者姓名： | 兰军 |
| 作者单位： | 中国科学院声学研究所 |
| 摘 要： | 本文提出两种综合方法,一种方法应用加权意义下最小均方差准则进行综合、它适用于综合完全确定的指向性函数。另一种方法是逐次逼近方法,它是以包络的形式与希望的函数进行拟合,它适用于综合具有指定旁瓣结构,同时要求主瓣最窄或指向性因子最大的指向性函数。两种方法都适用于任意阵,任意指定的指向性函数,都可以利用幅度束控,相位束控和不等距阵等方法进行综合。本文详细地阐述了两种综合方法的基本原理,然后作为例子用线阵幅度束控综合出几种典型的指向性图案。 |
| 收稿时间： | 1982-01-29 |
A GENERAL METHOD OF DIRECTIVITY SYNTHESIS |
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| LAN JUN. A GENERAL METHOD OF DIRECTIVITY SYNTHESIS[J]. ACTA ACUSTICA, 1983, 8(4): 210-219. DOI: 10.15949/j.cnki.0371-0025.1983.04.003 | |
| Authors: | LAN JUN |
| Abstract: | Two synthesis methods are given in this paper. One of them is the method in which criterion of minimum mean square difference is used. It is applicable in synthesizing the definite patterns. Another is a step-by-step approach method. It can be applied to synthesize the patterns main beam of which is the narrowest or directivity factor of which is the maximum for a given or specified side lobe structure. Two methods are available for any array, patterns can be synthesized by amplitude shading and phase shading as well as unequal spacing of elements. The principles of two methods are studied in some detail. Some patterns are synthesized by amplitude shading of line arrays in this paper. |
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