junzhi-biaozhuncha

说明：   这些程序,用于模拟仿真非线性动力学的分岔,混沌等动力学行为(it s for the nonlinear dynamics phenomenon of code.)

PID控制器，比较简单，可以作为matlab的GUI界面的教学使用。(PID controller.It is relatively simple, and can be used as the teaching tool of the Matlab GUI interface.)

Reshapes vector data to grid

em算法matlab代码。解压缩后直接可以在matlab环境下运行(em algorithm Matlab code. Decompress directly in the operating environment Matlab)

计算风工程湍流积分尺度matlab程序。(Turbulence integral scale wind engineering calculation matlab program.)

实现阵列信号处理MUSIC算法中对比不同的信噪比对算法的分辨率的影响。(MUSIC realize array signal processing algorithms compare the effects of different signal to noise ratio of the algorithm of resolution.)

针对SVM法线特征筛选算法仅考虑法线对特征筛选的贡献,而忽略了特征分布对特征筛选的贡献的不足,在对SVM法线算法进行分析的基础上,基于特征在正、负例中出现概率的不同提出了加权SVM法线算法,该算法考虑到了法线和特征的分布.通过试验可以看出,在使用较小的特征空间时,与SVM法线算法和信息增益算法相比,加权SVM法线算法具有更好的特征筛选性能.(Normal feature selection for SVM algorithm only considered normal for the contribution of feature selection, to the neglect of the characteristics of the distribution of feature selection have contributed to the lack of normal SVM algorithm based on the analysis, based on the characteristics of the positive and negative cases emergence of a different probability-weighted normal SVM algorithm, which takes into account the distribution and characteristics of normal. through the test can be seen in the use of smaller feature space, the normal and the SVM algorithm and information gain algorithm, normal weighted SVM algorithm has better performance of feature selection.)

对于给定的数个离散数据点，使用3次NURBS（非均匀有理B样条曲线）进行插值拟合。该算法程序能够反算出NURBS曲线控制点并绘制经过给定离散点的插值曲线。(For a given number of discrete data points, the 3 NURBS (nonuniform rational B spline curve) is used for interpolation fitting. The algorithm can calculate the control point of NURBS curve and draw the interpolation curve of the given discrete point.)

说明：  仿真轴承故障的振动信号，显示时域波形和频域波形。(Vibration signals of bearing faults are simulated and time domain waveforms and frequency domain waveforms are displayed.)

采用平面梁单元计算两铰抛物线拱的自由振动特性(Plane beam element calculation using the two hinged parabolic arch of the free vibration characteristics of)