xingnengbijiao

PMU volt using matlab/psat

基于能量检测认知无线电的算法仿真实现，里面含有高斯白噪声的添加(Cognitive radio based on energy detection algorithm simulation, which contains Gaussian white noise is added)

kelm matlab程序 带有中文注释 学习参考的源码(The kelm matlab program has the source code with annotation learning reference)

This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious. (This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious. )

Matlab Wireless Communications 应用例程(Routine application of Matlab Wireless Communications)

Implementation of Empirical CDF plot of sample data.

matlab最小二乘原理下的曲线拟合方法汇总：polyfit函数、“”命令、fminsearch函数、nlinfit函数。附上一个具体的例子：1900-2000年的总人口情况的曲线拟合。(matlab principle of least squares curve fitting method Summary: polyfit function, " " command, fminsearch a function, nlinfit function. Attach a specific example from 1900 to 2000, the total population of the curve fitting.)

matlab用于处理图像图像的应用，全书所有的代码都在(matlab image processing images for applications, all of the code in the book)

MATLAB代码实现PID自适应控制(MATLAB and PID control)

说明：  可以用来检测心电信号R波的位置和个数，使用方便准确率高(It can be used to detect the position and number of R wave of ECG signal, and it is convenient to use and has high accuracy)