In this article,the abilities of variance and mutual correlation coefficient absolute value to distinguish cutting chatter are studied.
文章采用仿真研究方法,对方差和互相关系数绝对值对机床切削颤振是否发生的判别能力进行了系统的研究,发现它们都不宜单独作为判别函数,提出了以方差和互相关系数绝对值作为综合判据判别切削颤振是否发生的观点。
By utilizing contrast means of signal-to-noise ratio, cross-correlation coefficient and mutual information rate, in order to simulate ability of cerebrum system in signal detection, stochastic resonance in EEG dynamics model was studied.
为了模拟大脑系统中检测信号的机制,提出使用信噪比、互相关系数、互信息率对比评价方法,对EEG动力学模型中随机共振现象进行了研究。
In algorithm 1,adaptive filter error signal s average amplitude is combined with cross-correlation coefficient between error signal and output signal of adaptive filter to distinguish EPC from DT.
提出了两种检测算法:算法1利用自适应滤波器误差信号的平均幅度,并结合误差信号和自适应滤波器输出信号的互相关系数来区分DT和EPC;算法2借助一个辅助滤波器来完成EPC和DT的检测,同时能加快主滤波器的收敛。
IACC is one of the important factors to evaluate sound field.
双耳互相关系数(IACC)是评价声场的重要参量,低的IACC值会带给人更好的音乐享受。
1) in Dayao, Yunnan in 2003 using cross-correlation coefficient method, after determining the high-resolution hypocentral locations of the earthquake sequences using the double-difference earthquake location algorithm.
1级地震序列进行精定位的基础上,采用互相关系数法测量了两个地震序列的快波偏振方向和快慢波的延迟时间。
The minimum co_correlation coefficients and the difference of them can provide evidently the information of the position and strength of edges,which implies that the analysis with co_correlation coefficients can be used for edge .
提出了多光谱图像像元特征矢量之间的极小互相关系数、极大互相关系数及互相关差值和相关密度的概念。