OFDM

利用matlab程序，进行模糊PID设计(Using matlab procedures designed fuzzy PID)

主要用途是对抗多径衰落。由于多径衰落的存在，使得同一个帧由于路径不同，到达用户端的时延有先有后。在相关的频域上的会造成子载波之间的相互干扰，影响 性能。另外，由于有了循环前缀，使得IFFT FFT操作把原来的线性卷积变成循环卷积，大大简化了相应的信号处理复杂度(The main purpose is to fight against multipath fading. Due to the presence of multipath fading, the first after they have the same frame different paths to reach the client delay. Would cause mutual interference between sub-carriers in the frequency domain, affecting performance. In addition, thanks to the cyclic prefix, so IFFT FFT operation to the linear convolution of the original into a circular convolution, greatly simplifying the corresponding signal processing complexity)

基于matlab的相场耦合分析案例，希望对各位有所帮助，如有不对，还请批评指正(Matlab phase field coupling analysis case, I hope to help you, if wrong, criticism and)

用matlab制作的红色小球沿螺线运动的动画(using Matlab produced by the small red balls along the spiral movement of animation)

another erett example..

魔兽源代码Cpp.rar一个国外最早发出的好东西(EverQuest source code Cpp.rar a foreign earliest a good thing)

ask simulink matlab example

风机和水轮机互补发电模型，互补之后到达输出总功率一定。(Wind turbine and turbine complementary power generation model, after the arrival of the output power of each complementary.)

基于菲涅尔域的双随机相位编码图像加密方案，利用角谱传播法实现(Based on double random phase encoding Fresnel domain image encryption scheme to achieve the use of angular spectrum propagation method)

说明：  信号的DFT和FFT频谱分析，以及对乃奎斯特采样频率的理解练习，对信号分析的朋友很有帮助( For a Linear Frequency Modulation signal,try to analyze its property in frequency domain.Given a system h(t) output.)