圆柱阵二维波束图综合方法研究  

Two-dimensional Beam Pattern Synthesis of Cylindrical Array

作　　者：蒋立志[1] 刘旺锁[1] 姚直象[1] 

机构地区：[1]海军工程大学电子工程学院,湖北武汉430033

出　　处：《电声技术》2014年第10期39-44,共6页Audio Engineering

摘　　要：圆柱阵通常等效成均匀圆阵进行一维波束图综合,深度方向波束固定且旁瓣级较高。多途效应导致接收基阵处声线弯曲入射,阵增益降低。为了修正圆柱阵的阵增益损失以及提高深度方向的抗干扰性能,在凹槽噪声法的基础上讨论了两种圆柱阵的二维波束图综合方法,即整体二维波束图综合方法和分步二维波束图综合方法。计算机仿真结果表明了两种方法的可行性。Cylindrical array is usually equivalent to a uniform circular array for one-dimensional beam pattern synthesis, has fixed-beam and high side-lobe level in the depth direction. Multi-path effects lead voice at the receiving array bend incident, the array gain is reduced. To correct the array gain loss and improve anti-jamming performance in the depth direction, two beam pattern synthesis approaches based on notch noise-field method are developed for cylindrical array. The first one is integral two-dimensional beam pattern synthesis method ; the second approach is muhistep two-dimensional beam pattern synthesis method. Results of computer simulation show feasibility and superior performance of two approaches.

关 键 词：圆柱阵 凹槽噪声法 二维 波束图综合 

分 类 号：TB56[交通运输工程—水声工程]