方位未知信号联合检测与估计研究  

Research on joint detection and estimation of the signal known except for direction

作　　者：蔡小勇[1] 幸高翔[2] 蔡志明[2] 

机构地区：[1]海军工程大学兵器工程系 [2]海军工程大学电子工程学院电子工程系,湖北武汉430033

出　　处：《系统工程与电子技术》2006年第4期505-508,共4页Systems Engineering and Electronics

基　　金：国防"973"项目基金资助课题(5130202)

摘　　要：为解决高斯噪声中方位未知平面波信号的检测及方位估计这一无源雷达信号处理中的重要问题,在讨论联合检测与估计序贯实现的基础上,设计远场平面波信号入射方位(DOA)的充分统计量,构造自然共轭密度函数族,并将其运用到序贯算法中。仿真实验表明,联合检测与估计序贯算法较传统的检测与估计分离算法在检测性能上有2 dB的改善。To solve the problem of the detection and estimation of the signal known except for direction in Oaussian noise for passive radar, the sequential implementation for joint detection and estimation is discussed, the sufficient statistics of unknown direction is proposed and the natural conjugate density function class is constiucted, then the algorithm of the sequential joint detection and estimation is developed. The simulation results show that the new algorithm out performs the traditional one by about 2 dB, in which the estimation follows the detection.

关 键 词：联合检测与估计 充分统计量 再生(共轭)概率密度函数 序贯检测 

分 类 号：TN911.7[电子电信—通信与信息系统]