排序方式: 共有65条查询结果,搜索用时 15 毫秒
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本文根据有关文献,介绍了正在发展的“灵巧”弹药概念与相关的引信信号处理新技术。作者认为在开展基于逻辑规则的近炸引信快速信号处理研究的同时,开展人工神经元网络技术在近炸引信信息处理中应用研究是十分必要的。 相似文献
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粗糙集知识发现的研究现状和展望 总被引:14,自引:4,他引:14
通过对粗糙集知识发现理论发展历史的问题,对粗糙集知识发现研究现状的探讨,结合目前主要的粗糙集知识发现系统,指出了粗糙集知识发现存在的问题,并对今后几年的研究进行了展望。 相似文献
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In order to study the problem of intelligent information processing in new types of imaging fuze,the method of extracting the invariance features of target images is adopted,and radial basis function neural network is used to recognize targets.Owing to its ability of parallel processing,its robustness and generalization,the method can realize the recognition of the conditions of missile-target encounters,and meet the requirements of re-al-time recognition in the imaging fuze.It is shown that based on artificial neural network target recognition and burst point control are feasible. 相似文献
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Feature selection is an important problem in pattern classification systems. High dimension fisher criterion(HDF) is a good indicator of class separability. However, calculating the high dimension fisher ratio is difficult. A new feature selection method, called fisher-and-correlation(FC), is proposed. The proposed method is combining fisher criterion and correlation criterion based on the analysis of feature relevance and redundancy. The proposed methodology is tested in five different classification applications. The presented results confirm that FC performs as well as HDF does at much lower computational complexity. 相似文献
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目的提取直升机声信号谐波频率作为特征用以识别直升机.方法用旋转不变技术估计信号参数法(ESPRIT)从实测的直升机声信号中提取谐波频率,算法采用SVDTLS.结果ESPRIT方法在直升机不同的飞行条件下,用有限长度的数据准确地提取了声信号的谐波频率.结论用ESPRIT方法提取直升机声信号谐波频率是十分有效的,将谐波频率作为目标特征用以识别直升机是完全可行的. 相似文献
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BP神经网络和遗传算法在货车车锁检测中的应用 总被引:2,自引:0,他引:2
为实现货车自动检测记录系统,需要根据化的图像检测进站货车车锁是否存在,提出一种基于BP神经网络和遗传算法的货车车锁检测方法,首先提取图像的投影特征,边缘图像的矩向量特征以及灰度直方图特征,然后用BP神经网络进行检测和定位;同时引入遗传算法,利用遗传算法的高并行性和鲁棒性,可以较快地完成全局搜索,而不会陷入局部最优,实验结果表明,该方法能有效地克服货车车锁种类多,变形大以及光照变化的影响,具有较高的检测速度和检测成功率。 相似文献
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