lognormal

This is the second tutorial of a series of image processing tutorials

本程序用于OFDM基本原理，仿真数据调制采用QPSK(This procedure is for OFDM basic principle, the simulation data modulation method is QPSK )

MATLAB的库提供了一个指针的指针和MATLAB的数据结构实现(MATLAB Pointer Library provides an implemetation of pointers and data structures in MATLAB )

Gardner算法的Matlab仿真与实现(simulation and implementation of Gardner algorithm)

说明窗函数为文献窄时，STFT无频域的定位功能；(Note, when a narrow window function of literature, STFT-free frequency domain positioning function )

本程序实现了最低有效位水印的嵌入以及提取过程，经仿真，可以用(This procedure implements the least significant bit of the watermark embedding and extraction process, the simulation can be used)

关于短路计算的一些源程序,同时是有关matlab的源程序(Short-circuit calculations on some of the matlab source code is also optimized source)

脉冲编码调制（PCM）是数字通信的编码方式之一，在通信系统中完成将语音信号数字化的功能。PCM的实现主要包括三个步骤：抽样、量化、编码，分别完成时间上离散、幅度上离散及量化信号的二进制表示。(Pulse code modulation (PCM) is one of the encoding of digital communications, in a communication system will complete the function of digital speech signals. The realization of the PCM mainly includes three steps: sampling, quantization and coding, completed on the discrete time, the amplitude of discrete and quantify the binary representation of signals.)

这是用来解常微分方程的原代码，是我自己编的哦。(This is the solution of ordinary differential equations for the original code, is a series of my own Oh.)

fir: Transform lowpass filters to highpass