FM

point detect introduction and implement the concept recommended

该段matlab代码能实现分段减采样，是对ecg数据压缩算法的基础，对压缩算法很重要(resample)

说明：  完成了QPSK的调制解调的仿真，没有载波恢复环节(Completed a QPSK modulation and demodulation of the simulation, there is no carrier recovery links)

％ 用途：选列主元Gauss消去法解线性方程组ax=b ％ 格式：x=nagauss2(a,b,flag) a为系数矩阵，b为右端列向量，flag若为0，则显示中间过程 ％ 否则不显示，默认值为0，x为解向量 ( Usage: Selected Principal Gauss elimination method solution of linear equations ax = b format: x = nagauss2 (a, b, flag) a for the coefficient matrix, b for the right side column vector, flag if it is 0, it shows the middle Otherwise, the process does not appear, the default value is 0, x for the solution vectors)

matlab插值问题，内有两个简单程序和PPT详细讲解，供参考。(matlab interpolation problem, there are two simple procedures and PPT explain in detail, for reference.)

基于LCL的三相逆变器并网恒功率PQ控制模型，输出稳定，谐波滤除效果非常好(LCL-based three-phase inverter and constant power PQ network control model, output stability, harmonic filter effect is very good)

matlab仿真模型，可以当作毕业设计内容使用。(matlab simulation model can be used as a graduation project content.)

cost function calculation for vertical handoff in heterogenous network

关于信息安全的数字水印技术，其的提取与嵌入过程！(On information security digital watermarking technology, the extraction and embedding process!)

4D可视化程序，非常适合初级学者。很好的参考资料，期待共同进步(4D visualization program, is ideal for junior scholars. A good reference, look forward to progress together)