notchfilter

对学好matlab很有用 ，对理解通信原理的一些很有用(Matlab to learn useful principle in understanding the communication of some very useful)

MATLAB中提供了汉明码的编解码、4FSK调制解调函数和不同通信信道模型函数，本程序直接调用进行编程。借助于MATLAB可大大地拓宽研究分析的视野提高研究设计的效率,具有重要的推广和应用价值。 (MATLAB provides the hamming codec 4FSK modem function and different communication channel model function, the program calls directly programming. Help of MATLAB can greatly broaden the horizons of research and analysis to improve the efficiency of the study design, with promotion and application value.)

Particle swarm optimization (PSO) is a novel metaheuristic inspired by the flocking behavior of birds. The applications of PSO to scheduling problems are extremely few.

绘制了仿真信号的FFT频谱和功率谱，并调用emd分析方法，绘制了emd分解结果，以及瞬时包络和瞬时频率图，还有Hilbert-Huang谱和Hilbert边际谱(signal processing of Hilbert-Huang and Hilbert simulation)

针对多种光栅，传输谱反射谱进行仿真，同时对反射谱加入切趾函数抑制旁瓣，MATLAB仿真(For a variety of gratings, the transmission spectrum reflection spectrum is simulated, and the apodization function is added to the reflection spectrum to suppress side lobes, MATLAB simulation)

Contains OFDM Documents with all descriptions

该程序为极化SAR数据处理中基础算法，将S矩阵转为C矩阵，并转成envi格式，便于后续处理。(The program is the basis of polarimetric SAR data processing algorithms, the S matrix into a C matrix, and turn into envi format, to facilitate subsequent processing.)

说明：  面阵中二维角度DOA估计算法，采用ESPRIT，经典算法，注释清晰，可拿来直接用(Two dimensional angle DOA estimation algorithm in array, using ESPRIT, classic algorithm, clear notes, can be used directly)

median feltering......median.m and median_filter.m

说明：  太阳能发电，用于光伏并网的逆变器设计，很好用，PI调节，闭环(Solar power for grid-connected solar inverter design, easy to use, PI regulation, closed loop)