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AM Modulation for Matlab

matlab 的关于到谱分析算法的程序，对于初学者有一定的帮助，易于学习到谱分析算法。(Matlab about spectrum analysis algorithm procedures for beginners have certain help, easy to learn spectrum analysis algorithm. )

纹理特征提取的matlab源代码，用灰度共生矩阵做的，最终得到一个8维的纹理特征向量。(Texture feature extraction matlab source code, the GLCM do eventually get an 8-dimensional texture feature vector.)

四阶龙格库塔法解微分方程组实例，没有调用函数，而是在基本含义基础上进行编译，有助于对龙格库塔法的理解。(Fourth-order Runge-Kutta method for solving differential equations instance, did not call the function, but on the basis of the basic meaning of compiler, contribute to the understanding of Runge-Kutta method.)

说明：  matlab学习书籍，pdf格式，书名：MATLAB6.5应用接口编程。(matlab learning books, pdf format, title: MATLAB6.5 application interface programming.)

generating time varying channel for jakes or flat fading.

计算晶体的倒格矢.计算时需要输入原来晶体格点所在坐标下的矩阵，这对理解倒格矢量很有意义。(A calculation of the reciprocal lattice vector)

matlab时频分析工具箱(附安装方法和函数说明) 这是一个工具箱源码程序，需要对大家有用(time-frequency analysis matlab toolbox (with installation method and function description) This is a toolbox source program, you need to be useful to everyone)

This program is designed to find the parameters of the method of least squares, building eksperimetalnyh and theoretical curves for to assess the quality of approximation for propagation occurs trend of all their characteristics: propagation time, phase, amplitude and polarization. On the smooth running pa - ters inevitably superimposed random fluctuations. For devices they associated with the noise of radio circuits, to propagate in the Natural governmental environments, radio waves to the presence of turbulent fluctuations. Code is of interest mainly to radiophysicists(This program is designed to find the parameters of the method of least squares, building eksperimetalnyh and theoretical curves for to assess the quality of approximation for propagation occurs trend of all their characteristics: propagation time, phase, amplitude and polarization. On the smooth running pa- ters inevitably superimposed random fluctuations. For devices they associated with the noise of radio circuits, to propagate in the Natural governmental environments, radio waves to the presence of turbulent fluctuations. Code is of interest mainly to radiophysicists)

采用神经网络实现手写识别的一种方法，建立Bp神经网络，采用快速训练方法，可快速完成一类相关手写字体的模式识别，识别率较高，当字体变化较大识别率降低时，可重新训练具有较强的适应性。实验证实本方法较好实现了手写字符识别，但也存在识别速度较慢，有时训练不收敛等缺点(Handwriting recognition using neural network is a way to establish Bp neural network, using fast training methods, and can be related to the completion of a class of handwriting pattern recognition, recognition rate higher recognition rate when the font changed greatly reduced, they can re- Training has strong adaptability. Experiments confirmed that this method achieved a better handwritten character recognition, but there are also identified slow, and sometimes non-convergence of the training deficiencies)