| 赵水兵,严冰,樊书宏,刘晓东.水下目标空间源数特征提取与识别方法[J].声学技术,2008,(3):342~346 |
| 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 |
| 投稿时间：2007-06-10 修订日期：2007-08-05 |
| DOI： |
| 中文关键词: 水下目标 识别 特征 源数 |
| 英文关键词: underwater target recognition feature source number |
| 基金项目: |
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| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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. |
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