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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。
In this paper, two comprehensive methods are proposed. One method is to combine the least mean square error criterion under the weighting meaning. It is suitable for the comprehensive and completely determined directivity function. Another method is the successive approximation method, which is fitting with the desired function in the form of an envelope. It is suitable for integrating a directivity function with a specified side-lobe structure and with the narrowest mainlobe or the largest directivity factor. Both methods are suitable for arbitrary arrays, and any specified directivity function can be integrated by means of amplitude beamforming, phase beam steering and unequal array. In this paper, the basic principles of the two methods are described in detail. Then, several typical directional patterns are synthesized by using the linear beam amplitude control as an example.