A New Synthesis Method for Sum and Difference Beam Pattern with Low Sidelobe  

作　　者：徐振华 黄建国 张群飞 

机构地区：[1]School of Marine Engineering,Northwestern Polytechnical University

出　　处：《Defence Technology（防务技术）》2011年第2期72-77,共6页Defence Technology

基　　金：Sponsored by the National Nature Science Foundation of China(60972152)

摘　　要：A new method for sum and difference beam pattern synthesis with low sidelobe is proposed.In the situation of phase taper weighting,it makes use of Fourier transform pair relationship existing between the array factor and the element excitations and uses a loop iterative way to derive the array element excitations according to given array factor.The iteration does not stop until the array element excitations meet the initial sidelobe requirements.The method overcomes the defects of traditional methods,such as more searching times,larger amount of calculation and poor robustness.In addition,it can also synthesize the low sidelobe pattern in case of element failures.Simulation verifies the effectiveness of the method.A new method for sum and difference beam pattern synthesis with low sidelobe is proposed. In the situation of phase taper weighting, it makes use of Fourier transform pair relationship existing between the array factor and the element excitations and uses a loop iterative way to derive the array element excitations according to given array factor. The iteration does not stop until the array element excitations meet the initial sidelobe requirements. The method overcomes the defects of traditional methods, such as more searching times, larger amount of calculation and poor robustness. In addition, it can al- so synthesize the low sidelobe pattern in case of element failures. Simulation verifies the effectiveness of the method.

关 键 词：光束合成 低副瓣 光束模式 数组元素 循环迭代 傅里叶变换 传统方法 搜索时间 

分 类 号：TN911.7[电子电信—通信与信息系统]