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matlab实现的基于HMM模型的语音识别系统，很实用！(Matlab achieve the HMM-based speech recognition systems, a very practical!)

介绍了坐标变换在异步电机中的应用条件和原则，以便能够快速地在异步电机中选择合适的坐标，提高工作效率．并结合异步电机矢量控制存MT坐标系中变换后，可类似于直流电机的转矩电流分量和磁场电流分量(the vector control of asynchronous motor based on the right coordinate)

层次分析法，是matlab编写的，仅作分享之用(AHP(analytic hierarchy process))

RBF方法对一维函数进行插值实例，选用的函数为MQ函数，可与高阶多项式插值对比，说明RBF方法克服了龙格振荡问题。(RBF method for one dimentional function interpolation, where the Runge oscillation is disappear.)

小波分析的经典案例，很适合初学者学习。。。。。(Wavelet analysis of the classic case, very suitable for beginners to learn)

用Arnold矩阵变换进行图像置乱的加密算法及其源代码(By Arnold transform the matrix of image scrambling encryption algorithm and its source code)

CDMA通信系统仿真程序，可以选择不同的PN码扩频调制，有信道编码，信道加入高斯白噪声，仿真不同的检测器的的性能(CDMA communication system simulation, simulation of different detectors performance)

An example of the German enigma encryption technology COOL

3DFDTD用来计算三维光子晶体在入射波照射下的透过率情况(3DFDTD used to calculate the three-dimensional photonic crystal in the case of incident radiation transmittance)

进行平面阵的声聚焦仿真，可改变阵元间距，聚焦点距离来讨论平面阵的聚焦效果(Planar Array acoustic simulation focus, may change the array element spacing, the focal point for discussion the focusing effect of the plane array)