ofdm_system

Matlab的图像处理小软件，注意修改路径，以及图片。(Matlab image processing small software, pay attention to modify the path, and pictures.)

说明：  基于模数运算的数字水印算法的matlab源代码(Modular arithmetic based on digital watermarking algorithm matlab source code)

利用matlab計算t2管制圖phase1的管制上限及管制下限(Calculated using matlab control t2 control chart phase1 upper and lower control)

在无线信道的理论基础上，分析了Suzuki信道模型的结构原理，介绍了利用正弦波叠加法构成高斯序列，从而建立Suzuki信道数学模型的方法，并通过Matlab软件对其进行了仿真。(In the theory of radio channel based on the analysis of Suzuki channel model structure principle, describes the use of sine wave superposition method constitutes a Gaussian sequence, thereby establishing a channel model Suzuki method, and through its simulation Matlab software.)

三种聚类方法的比较，MATLAB可执行源程序(The comparison of three methods of clustering, MATLAB source executable)

包括调制，解调，信噪比计算，欢迎大家下载学习，小波包分析提取振动信号中的特征频率。( Includes the modulation, demodulation, signal to noise ratio calculation, Welcome to download the study, Wavelet packet analysis to extract vibration signal characteristic frequency.)

自己做的： （一）用双线性变换法设计并用实验系统实现一个三阶的契比雪夫Ⅰ型低通数字滤波器，其采样频率Fs =8KHz，1DB通带边界频率为fp=2KHz。 （二）用双线性变换法设计并用实验系统实现一个三阶的契比雪夫Ⅱ型高通数字滤波器，其采样频率Fs =16KHz，阻带边界频率为fst =4KHz，As=20dB。 ((A) design using the bilinear transformation method and the experimental system of a third-order Chebyshev low-pass type Ⅰ digital filter, the sampling frequency Fs = 8KHz, 1DB passband boundary frequency is fp = 2KHz. (B) Bilinear transformation method used to design and use of the experimental system of a third-order Chebyshev type Ⅱ high-pass digital filter, the sampling frequency Fs = 16KHz, stopband boundary frequency fst = 4KHz, As = 20dB.)

fft处理及频谱图绘制、均方根谱图、功率谱、IFFT谱图等matlab的绘制程序(fft processing and display)

说明：  使用matlab 实现的多相滤波。。。。。(With the realization of Mmatlab multiphase filtering )

说明：  sfpc 一种预测控制实例，在理想建模的情况下有良好的控制品质(sfpc )