水下目标空间源数特征提取与识别方法  

A method of space source number feature extraction and automatic recognition for underwater targets

作　　者：赵水兵[1] 严冰[1] 樊书宏[2] 刘晓东[1] 

机构地区：[1]西安精密机械研究所,西安710075 [2]西北工业大学,西安710072

出　　处：《声学技术》2008年第3期342-346,共5页Technical Acoustics

摘　　要：针对水下目标识别正横阵位问题,并进一步扩大目标识别的阵位范围。给出了目标识别的阵列形式,用水平线列阵进行目标亮点水平方位的源数估计。提取并找出了能反映水下潜艇目标空间特征的特征量。提出了基于信噪比监督的空间源数识别方法,给出了相关矩阵的空间平滑的特征值,还提出了基于信噪比和盖尔圆半径监督的目标特征的自动分类方法。对本文提出的方法进行了大量计算机仿真,仿真结果表明,该方法可在正横阵位有效识别目标。Underwater target recognition is discussed under the condition of abeam bearing attacking, and the attacking angle on the bow is increased. According to the shape of array, space source numbers, which stand for space highlight numbers, can be estimated. Submarine space feature are found and extracted. A new method based on the space source number under certain SNR condition is presented for cross attack issue of underwater target recognition, and the automatic classification of target features on the basis of certain SNR and radius of Gael circle is studied. Simulations show that this method is valid under various conditions.

关 键 词：水下目标 识别 特征 源数 

分 类 号：TN911[电子电信—通信与信息系统]