摘要
在阵列信号处理中端部激励状态最易发生变化,影响信号处理效果.为此,提出一种改进的道夫-切比雪夫加权的波束形成方法,成功地降低了阵列的端部灵敏度,它是传统道夫-切比雪夫加权方法的改进.它继承了道夫-切比雪夫加权的优点,即:在给定旁瓣高度的要求下获得最窄的主瓣;在给定主瓣宽度要求下获得最低的旁瓣.同时规定参数把波束分成了均匀旁瓣与下降的旁瓣2个区,从而降低了阵列端部灵敏度.
The end excitation state is easiest to change in array signal processing, which can influence the effect of array signal processing. This paper presents a method to design the heamforming using the improved Dolph-Chehyshev weighting. The method succeeds in decreasing the array end sensitivity. It is an improvement of the traditional Dolph-Chebyshev method, inheritting the advantages of this method, namely attaining the narrowest at mainlobe width on condition of fixed sidelobe height and the lowest sidelobe in terms of fixed mainlobe width.At the same time, the parameters are specified that can divide the beam into two sections, with one made up of uniform sidelobe, the other made up of descending sidelobe.
出处
《应用科技》
CAS
2005年第8期1-3,共3页
Applied Science and Technology
作者简介
李伟洲（1976），男，硕士研究生，主要研究方向：信号与信息处理．
