cowell_back

数字图像在产生过程中经常会受到噪音污染。因此，对于数字图像应该对其进行去噪音处理。在传统的基于傅里叶变换的信号去噪音方法中，可以使得信号和噪音的频带重叠部分尽可能的小，这样就可以在频域通过时，不需改变滤波方法而将信号和噪音分隔开来。但是，如果信号和噪音的频域重合时，用该方法进行噪音处理的效果就比较差。(digital image in the selection process will be subject to regular noise pollution. Therefore, the digital image should be carried out to deal with the noise. Based on the traditional Fourier Transform method of signal to noise, can result in a signal and noise bands overlap small as possible, so it can be adopted in the frequency domain, the need to change methods of filtering the signal and noise to separate. However, if the signal and noise in the frequency domain coincidence, the method for dealing with the effects of noise on the relatively poor.)

A QPSK simulation using simulink. very useful to understand the scheme at every level of QPSK modulation.

Script generates list of owners for files in choose directory

将VaxD（“Dec”）格式的C3Ds数值格式转化为IEEE—LE（“PC”）格式。(Convert the numerical format of C3Ds from VaxD ("Dec") to IEEE-LE ("PC"))

this is about edge detection

说明：  利用KICA实现聚类，里面含有数据集，可以进行测试(clustering with KICA)

用MATLAB实现频域平滑滤波以及图像去噪代码，Word文档格式。(The frequency domain using MATLAB realize smoothing and denoising code, Word document format.)

该MATLAB程序对在光纤中孤子的传输过程进行了仿真(The MATLAB program soliton in optical fiber transmission process of the simulation)

讲述通信系统仿真的基本知识，包括基带数字传输和带限信道的数字传输的内容(Basic knowledge about the communications system simulation, including baseband digital transmission and digital transmission band-limited channel)

虚拟力的无线传感网络覆盖，关于小波的matlab复合分析，迭代自组织数据分析。( Virtual power wireless sensor network coverage, Matlab wavelet analysis on complex, Iterative self-organizing data analysis.)