方向依赖的阵元复增益条件下宽带chirp信号二维角估计  

2-D AOAs Estimation of Wideband Chirp Signalsin Direction-dependent Sensor Complex Gain Condition

作　　者：殷吉昊[1] 汪玲[1] 陈天麒[1] 

机构地区：[1]电子科技大学电子工程学院,成都610054

出　　处：《电子与信息学报》2008年第10期2295-2298,共4页Journal of Electronics & Information Technology

摘　　要：在方向依赖的阵元复增益条件下,该文提出一种宽带chirp信号二维角估计新方法。该方法基于信号时变阵列流形结构分析,构造出一种阵列流形时频变换,无需估计和补偿即可消除阵元幅相不一致误差的影响,实现宽带chirp信号二维角闭式解析估计。仿真实验表明了新方法的有效性。A novel method is proposed to estimate 2-dimensional （2-D） angles of arrival （AOAs） of wideband chirp signals in direction-dependent sensor complex gain condition. In this method, via the algebraic structure of wideband chirp signal＇s time-varying manifold, a manifold time-frequency transform is presented to obtain closed-form 2-D angles estimation and sensor errors elimination. The efficacy of the proposed method is verified by simulation results.

关 键 词：宽带CHIRP信号 二维到达角估计 阵列误差校正 

分 类 号：TN911.7[电子电信—通信与信息系统]