MatlabCloser

实验四 数字解调与眼图 1. 验证2DPSK 相干解调原理。 2. 验证2FSK 过零检测解调原理。 (Four digital demodulation experiment with eye diagrams 1. verify the 2DPSK coherent demodulation. 2. Verify 2FSK zero-crossing detection and demodulation principle.)

Solution for some problems in Codeforces

HOMER(Hybrid Optimization Model for Electric Renewable，可再生能源互补发电优化建模)。HOMER是一个计算机模型，它简化了离网和并网对于远程的、独立的和分布式发电系统的评估选择的任务。HOMER优化和灵敏度分析算法，可以用来评估系统的经济性和技术选择的可行性，以及考虑技术成本的变化和能源资源的可用性。(HOMER (Hybrid Optimization Model for Electric Renewable, renewable energy and solar power generation optimization modeling). HOMER is a computer model that simplifies the task of off-grid and grid for remote, stand-alone and distributed generation systems to assess choice. HOMER optimization and sensitivity analysis algorithms can be used to select the feasibility of economic and technical assessment of the system, and to consider changes in the availability of technology costs and energy resources.)

对非平稳信号进行分段、截取，再对处理过后的短时信号做短时傅里叶变换，分析其频谱特性，并找到各个时间节点的频率特性，以便分析不同事件段内的声音特征。(The nonstationary signals are segmented, and then the interception, the short-time signal after processing the short-time Fourier transform, the analysis of the spectrum characteristics and frequency characteristics and find the different time node, in order to analyze the acoustic characteristics of different event period.)

二维情况下用ＦＤＴＤ方法模拟电磁波的传播情况，没加吸收边界条件，用Ｃ和MATLAB混合编程，信号源是高斯脉冲(Two-dimensional case with the FDTD simulation of electromagnetic wave propagation, no additional absorbing boundary condition, mixed with the C and MATLAB programming, the signal source is a Gaussian pulse)

说明：  这个程序是用MATLAB编写得一个灰度共生矩阵特征及其一些参数得计算，希望对大家有用。(The MATLAB program is written, a GLCM features and some of the parameters was calculated, and I hope useful.)

在视图中使用CWindowDC在整个窗口进行绘图，C++精选学习源码，很好的参考资料。(For drawing in the window using CWindowDC in the view, select learning C++ source code, a good reference.)

奇异吸引子，混沌吸引子，复杂系统理论，画法代码。(Strange attractor, chaotic attractor, complex systems theory, painting code.)

模块化多电平（modular multi-level control，MMC）matlab例程，仿真实例(Modular multi-level (modular multi-level control, MMC) matlab routines, simulation examples)

交错网格声波方程正演模拟，交错网格有限差分地震波场计算，二维的声波正演，利用空间10阶，时间2阶。(The CalCulation of the SeismiC Wave一 fieldwith Staggered-grid Finite difference Sheme)