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- Bispectral analysis can reveal information of quadratic phase coupling of a time series and fits well the demands of characteristic extraction while on-line monitoring wear conditions of a milling cutter. 摘要双谱分析能够揭示时间序列的二次相耦合信息,特别适于铣刀磨损状态监测信号的特征抽取。
- This paper use the Bispectrum estimation using the direct method to process the tremor, based on studying the theory about bispectrum.It can detect quadratic phase coupling in tremor signal. 在对双谱分析理论充分研究的基础上,应用直接法双谱估计分析不同类型的震颤信号,检测不同震颤二次相位耦合情况。
- quadratic phase coupling 二次相位耦合
- It analyses quadratic phase stainless and its metal compound generated from weld seam and HAZ,which affect welded pipe usage property. 分析了双相不锈钢及其焊缝和热影响区中产生的金属间化合物等二次相对焊管使用性能的影响。
- It state that in order to avoid their disadvantage effect to toughness and anticorrosion property,must take some actions during quadratic phase stainless production. 指出为了避免二次相析出对韧性、抗腐蚀性产生不良影响,在双相不锈钢焊管生产中必须采取的一些措施。
- The reference light is slant and parallel when the complex filter is being built for VLC. We design a optical recognition 2f+p system whose complex filter contains quadratic phase term. 我们设计的复数滤波器带二次位相因子的光学相关识别 2f+p系统 ,在制作复数滤波器时 ,参考光是一束倾斜入射的会聚光 ,使复数滤波器包含一个二次位相因子 ;
- On the basis of CGH, it can encode two objects simultaneously by adding negative quadratic phase factor on the conjugate Fourier spectrum of one object and adding positive quadratic phase factor on the Fourier spectrum of the other. 它是在计算全息的基础上 ,通过对两个物的傅里叶谱或共轭谱分别加正的或负的二次相位因子 ,求和后进行编码、制图、缩微而得 ,该滤波器可以分别对两个物实现匹配。
- A quadratic phase factor and DOG wavelet transform function are introduced into traditional matched filter to sharpen correlation peak, which is fabricated by computer generated hologram. 用计算全息制作该匹配滤波器时,引入DOG子波函数,以达到锐化相关峰的目的。
- A 2D harmonic model based on the quaternion was constructed, and a special four-order cumulant was defined.The 2D cubic nonlinear phase coupling of additive color Gaussian noises was analyzed. 构造了合适的基于四元数的二维谐波模型,根据此模型定义了特殊的四阶累积量切片,分析了加性高斯在有色噪声中的二维三次非线性相位耦合。
- Objective To investigate the correlation between the degree of phase coupling among orthogonal electrocardiogram(ECG) during ventricular fibrillation(VF) and the defibrillation shock outcome. 目的为探讨心室颤动时正交心电图(ECG)相位耦联程度与心室电除颤结果之间的相关性。
- Finally, a special case relevant to cubic phase coupling is considered, and these results are stated for this case, the variance is shown to comprise an ergodic and a nonergodic part. 最后考虑了相应于三次相位耦合的特例,说明这一情形下的方差由遍历和非遍历两部分组成。
- Novel Method Based on Signal-to-Noise Skew Ratio for Enhancing Quadratic Phase Dynamic Coupling Signals 基于信噪歪度比的二次相位耦合信号增强新算法
- The child is going through a difficult phase. 那孩子正经历困难的阶段。
- The two sets of traffic lights were out of phase. 那两组交通灯不同步。
- Their difference is a quadratic residue of 17. 它们的差是17的平方剩余。
- The branch of algebra that deals with quadratic equations. 二次方程式论处理二次方程式的代数学的分支
- They have decided to phase in the new techniques. 他们已决定逐步引入新技术。
- The windshield wipers are out of phase now. 挡水玻璃刮水器现在动作不协调。
- Some quadratic equations have no real roots. 某些二次方程没有实数根。
- Quadratic Phase Shift Three-Point Method Through Which Linear Motion Error Can Be Separated and Gained Firstly 先行分离直行运动误差的二次相移三点法