时间序列,指数平滑法,灰色GM(1,1)模型,运用最优加权组合模型和经验加权组合模型...

通信原理仿真 码型反变换的仿真实现 Ⅰ、基本任务：由抽样判决后的AMI码型和CMI码型数字序列恢复出原始的PCM脉冲编码信号。 主要步骤和要求： （1）由抽样判决后的AMI码型数字序列恢复出原始的PCM脉冲编码信号（0、1信号）。要求抽样判决后的AMI码型数字序列可以是数字型也可以是字符型；要求画出码型反变换前后的波形图。 （2）由抽样判决后的CMI码型数字序列恢复出原始的PCM脉冲编码信号。要求抽样判决后的CMI码型数字序列可以是数字型也可以是字符型；要求画出码型反变换前后的波形图。 Ⅱ、选做任务：由抽样判决后的HDB3码型数字序列恢复出原始的PCM脉冲编码信号。 主要步骤和要求： 由抽样判决后的HDB3码型数字序列恢复出原始的PCM脉冲编码信号（0、1信号）。要求抽样判决后的HDB3码型数字序列可以是数字型也可以是字符型；要求画出码型反变换前后的波形图。 (Communication theory simulation Fifth problem, Pattern Simulation of inverse transform Ⅰ, basic tasks: decision by the sampling pattern after AMI and CMI pattern sequence to recover the original digital PCM pulse code signal. Main steps and requirements: (1) post-judgment by the AMI code sample digital sequence to restore the original PCM pulse code signal (signal 0,1). AMI requires post-judgment sampling digital code sequence can also be a numeric character asked to draw a pattern waveform before and after the inverse transform. (2) post-judgment by the CMI sampling digital code sequence to restore the original PCM pulse code signal. Requirements of post-judgment CMI sampling digital code sequence can also be a numeric character asked to draw a pattern waveform before and after the inverse transform. Ⅱ, choose to do the task: the post-judgment by the sample type HDB3 code sequence to recover the original digital PCM pulse code signal. Main steps and requirements: Pos)

给出了三种动态子结构方法的程序，对比了自由界面模态综合法，固定界面模态综合法，双协调自由界面模态综合法三种方法。(Shows three dynamic substructure method of procedure, compared to the free interface modal synthesis method, fixed-interface modal synthesis method, two-coordinate free interface modal synthesis method of three methods.)

matlab学习资料，常用函数的使用，适合初学者和常用matlab工作者下载学习。(matlab learning data, the use of commonly used functions, suitable for beginners and commonly used matlab workers to download the study.)

m_map包，用于绘制地图，很好用的一个matlab绘图工具包(m_map this can help you draw a map with the matlab this can make you to draw a map)

Decomposition and reconstruction example 1

MFCC algorithm for calculating mel frequenc cepstral coefficients.

高斯法求解方程，在matlab中建立，求解方程并显示运算时间结果，用于对高斯法有一个更直观的认识。(Gauss method for solving equations, established in matlab, solving equations and displays the computation time results for the Gaussian method has a more intuitive understanding.)

frft.快速分数阶傅里叶变换函数。调频信号分析的有力工具。(function of frft)

基于MATLAB的程序，用小波变换对语音信号进行去噪(MATLAB-based program, with wavelet transform to speech signal denoising)

matlab实现16QAM调制解调的程序(matlab realize 16QAM modulation and demodulation procedures)