摘要
本文讨论在切比雪夫意义下最佳非均匀间隔稀布阵列的综合问题。推导了最佳阵元分布方程,对阵元无方向性和等加权时的最佳阵列——指数问隔阵列进行了分析,导出了天线方向图旁瓣包络和波束宽度的估计公式,给出了近轴旁瓣电平与阵列参数的关系。这些结果使我们能用最少的阵元设计出所需要的阵列。最后,对几种“最佳”阵列进行了比较,结果表明:指数间隔阵列是目前最好的一种稀布阵列。
This paper discusses the synthesis of optimum thinning arrays by nonuniform spacings in the sense of Dolph-Chebyshev. Having derived the equations of optimum element distribution, we analyze the exponentially spaced arrays, which arc optimum when the elements are isotropic and equally weighted. The formulae for estimating the sidelobe envelope and beamwidth of the array pattern are obtained. Also, the relationship between the nearby side-lobe level and the array parameters is given. These results allow us to design a desired array with minimal elements. Finally, a comparative study on some 'optimum' arrays shows that the exponentially spaced array is the best one of them.
出处
《电子学报》
EI
CAS
CSCD
北大核心
1989年第4期81-87,共7页
Acta Electronica Sinica
