Adaptive synthesis method for broadband array with frequency invariant beam pattern  

作　　者：ZHUWeijie SUNJincai ZENGXiangyang 

机构地区：[1]CollegeofMarineEngineering,NorthwesternPolytechnicalUniversityXi'an710072 [2]CollegeofMarineEngineering,NorthwesternPolytechnicalUniversityXi'an710072

出　　处：《Chinese Journal of Acoustics》2003年第4期352-359,共8页声学学报（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China (60272077)

摘　　要：Based on adaptive technique, a design method for broadband array with frequency invariant beam pattern is presented. For a given beam pattern, the all design process can be completed automatically by computer without deriving expression of weight vector. The design process is divided into three steps: (1) Evaluate the weight vector in reference frequency by numerical method. (2) Obtain the weight vectors in other frequency by adaptive technique. (3) For the design target of frequency response given by weight vector at different frequency point, design FIR filter. The proposed method can be applied to arbitrary array and have no restriction on element patterns.Based on adaptive technique, a design method for broadband array with frequency invariant beam pattern is presented. For a given beam pattern, the all design process can be completed automatically by computer without deriving expression of weight vector. The design process is divided into three steps: (1) Evaluate the weight vector in reference frequency by numerical method. (2) Obtain the weight vectors in other frequency by adaptive technique. (3) For the design target of frequency response given by weight vector at different frequency point, design FIR filter. The proposed method can be applied to arbitrary array and have no restriction on element patterns.

分 类 号：TN713[电子电信—电路与系统]