placa_zonal_30_ej1

完整的希尔伯特时频谱程序，可直接运行查看结果，对EMD初学者很有帮助，内附HHT源码。(A complete Hilbert spectrum program, which can be run directly to view the results.It is helpful to the EMD beginners.And the HHT code is enclosed.)

matlab编程实现多孔介质孔隙从二维发展为三维的随机模拟。(Matlab programming porous media stochastic simulation ofpore 2 d to 3 d )

考虑空穴效应的雷诺方程数值分析求解，MATLAB编程(Consider the effect of Reynolds equations hole)

基于matlab 的 dft 的 fft 的 是吸纳(the same as before fft dft )

简单详细的永磁同步发电机仿真，可以出图，完美运行(Simple simulation of permanent magnet synchronous generator can be drawn.)

该程序源代码实现了CDMA通信系统性能的仿真，用MATLAB实现了直序、跳时、跳频以及M序列，GOLD序列等的产生，及在AWGN和RAYLEIGH环境下误码率的计算(The program source code to achieve the performance of CDMA communication system simulation, using MATLAB realize the direct sequence, time hopping, frequency hopping and M sequences, GOLD sequence generation, and in the AWGN environment and RAYLEIGH BER calculation)

16QAM的解调方式，需要的朋友可以下载啊(16QAM demodulation method needs friends can download ah)

实现一定tari和采样频率下的PIE编码，输入一定长度的随机数字信号，输出经过PIE编码的方波序列(PIE coding to achieve certain tari and sampling frequency, random length digital signal input and output through the square wave sequence encoding PIE)

BuildFBITree function in the signal processing

file contains file contains matlab program matlab program file contains matlab program