| 高阶统计量在主动声呐混响信号谱估计中的应用 |
| |
| 引用本文： | 刘冰雍,王平波,蔡志明.高阶统计量在主动声呐混响信号谱估计中的应用[J].武汉理工大学学报(交通科学与工程版),2009,33(3):454-457. |
| |
| 作者姓名： | 刘冰雍 王平波 蔡志明 |
| |
| 作者单位： | 海军工程大学电子工程学院,武汉,430033 |
| |
| 基金项目： | 国家重点基础研究发展规划(973计划) |
| |
| 摘 要： | 对主动声呐混响信号进行谱估计,用高阶统计量对混响信号建立自回归模型,并建立基于高阶统计量的Yule-walker方程,解方程得到估计系数.将高阶统计量谱估计的结果与二阶统计量估计的结果进行比较,得出高阶统计量对自回归模型的谱估计优于二阶的结果.高阶统计量能弥补二阶统计量无法反映信号相位特性的不足,提高谱估计的一致性.
|
| 关 键 词： | 高阶统计量 谱估计 自回归模型 混响 |
Application of Higher-order Statistics on the Spectral Estimation of the Reverberation of the Active Sonar |
| |
| Liu Bingyong,Wang Pingbo,Cai Zhiming.Application of Higher-order Statistics on the Spectral Estimation of the Reverberation of the Active Sonar[J].journal of wuhan university of technology(transportation science&engineering),2009,33(3):454-457. |
| |
| Authors: | Liu Bingyong Wang Pingbo Cai Zhiming |
| |
| Institution: | College of Electronic Engineering;Naval Univ.of Engineering;Wuhan 430033 |
| |
| Abstract: | On the spectral estimation of the reverberation of the active sonar,auto-regressive model and Yule-Walker equation are established using higher-order statistics to gain the coefficient.Comparing the estimated spectral using higher-order with the estimated spectral using second-order statistics,it can be concluded that the use of higher-order statistics on the estimate of spectral is better than the use of second-order statistics.Higher-order statistics can make up for the disadvantage that the second-order ... |
| |
| Keywords: | higher-order statistics spectral estimation auto-regressive model reverberation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
