ex4_division

num=[2 1.4 -0.9 -0.158 0.4104 0.0294 -0.0668] den=[1] figure(1) zplane(num,den) num1=[1 2.7 -12.61 -24.757 66.301 62.072 -126.786] den1=[1] figure(2) zplane(num1,den1) num2=[0.2 -0.26 1.934 10.413 1.934 -0.26 0.2] den2=[1] figure(3) zplane(num2,den2) num3=[1.25 0.5 -2.1 -2.1 0.5 1.25] den3=[1] figure(4) zplane(num3,den3) num4=[1.1 3.12 -2.5 0.6 0.5 0.006 1] den4=[1] figure(5) zplane(num4,den4) (good)

功能：输入一页文字，程序可以统计出文字、数字、空格的个数功能：输入一页文字，程序可以统计出文字、数字、空格的个数(code)

说明：  通信系统仿真,QPSK调制与解调,主要针对差分解调方式,对于matlab初学者以及做通信仿真的人员有很好的参考价值(communications system simulation, QPSK modulation and demodulation, the main differential demodulator, for beginners and Matlab done Communication Simulation of a very good reference value)

用Canny算子进行边缘检测 的 函数 文件，大家可以尝试的用用，都是基于matlab平台的。(Canny operator for edge detection function documents, we can try to use use are based on Matlab platform.)

reading raw sar data

灰色模型的改进程序算法，包括初值和背景值的改进，(Improved gray model, including the initial and background values ​ ​ improve)

Simulation if the MIMO OFDM with frequency offset and multhipath channel

最近邻插值算法matlab实现，内含程序和说明，非常详细(The implementation of the nearest neighbor interpolation algorithm matlab)

说明：  一维杆单元有限元分析，包中有详细的WORD文档说明(One-dimensional finite element analysis of beam elements, including the documentation detailed WORD)

关于医学图像的基于形状的图像检索。预处理用小波去噪 ，特征选用不变矩。(image preprocessing)