zhang

说明：  利用高斯频谱产生三维的高斯随机起伏地表的小软件(generates 3D Gaussian random rough surfaces with Gaussian Spectrum.)

说明：  图与网络学习，主要是与MATLAB结合的方法(Figure and learning, the main method of combining with MATLAB)

布朗运动的模拟:模拟了在一个有界平面内，N个点进行布朗运动后的分布情况(brownian motion)

最大化频谱接入机会的能量检测方法的研究-----认知无线电(Access to opportunities to maximize the energy spectrum detection of cognitive radio-----)

A motion picture presents a continues phenomena as a sequence of frames. We perceive continuity by "filling in the gaps" and "smoothing out " the missing information. While faster motion requires more frames during a given time period, there is a point where more frames per second yield no further improvement. The "sampling speed" must be fast enough to allow "appropriate averaging of dead times between frames", but need not accommodate motion too fast to be seen by a human. The above description is somewhat analogous to sampling of audio signals. The sampling rate depends on how fast the signals vary (the highest frequency we hear). Nyquist showed that sampling frequency exceeding twice the audio bandwidth is sufficient to include all the signal information, preserving the finest details up to half the sampling rate

颜色空间转换，颜色直方图信息提取，颜色空间逆变换(Color space conversion, color histogram information extraction, the color space inverse transform)

PS3 Logical Performance Monitor.

source code for Viterbi Algorithm.

说明：  基于MATLAB的正交幅度调制系统仿真基于MATLAB的正交幅度调制系统仿真(MATLAB-based Simulation of quadrature amplitude modulation quadrature amplitude modulation MATLAB-based simulation)

信号去噪的基本步骤： （1）信号的小波分解； （2）小波分解高频系数的阈值量化； （3）信号的小波重构。使用分解的低频系数以及阈值量化后的高频系数进行小波重构。 (The basic steps of signal denoising:( 1) of the wavelet decomposition of signals ( 2) the high frequency coefficients of wavelet decomposition threshold quantization ( 3) the signal wavelet reconstruction. Using the decomposition of the low frequency coefficient and threshold quantization the high-frequency coefficient after wavelet reconstruction.)