【摘要】 为提高目标特征提取的有效性。通过计算各种特征的类间平均距离、类内紧致性度量及相对评价指标对不同特征提取方法的特征向量进行比较。给出相同目标状态、相同环境条件下同特征提取方法性能比较结果。结果表明,不同的特征提取方法均有一定的适用条件,融合不同特征是提高识别率的有效途径。更多还原

【Abstract】 The efficiency of feature extraction is the key to recognize the submarine target.The better method is to obtain fewer eigenvector dimension.This paper researched on the average distance of different sorts,the compact measurement of the same sort and the relative value of different sorts.Some comparative results that the target is of the same state and in the same environment are given.It can be seen from these results that different feature extraction methods have different applicable condition,fusing different characteristics is an effective approach to improve the recognition ratio.更多还原