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Wavelet denoising For using this code need to use signal toolbox and general toolbox in your matlab In the first part of this assignment, we asked to obtain a (black-and-white) digital image of size 512 by 512 and then generate noisy image by adding a Gaussian noise but under the condition of having SNR=20dB by select the suitable value of variance for Gaussian noise formula. Second step is performing wavelet denoising using the hard thresholding (Use the db 6 for four levels) in the condition of finding the optimal thresholding value of T in terms of the SNR obtained. It means that, we should find the highest SNR value by finding the suitable value for threshold. Then we asked to do the same process but this time using soft thresholding. Finally for the last part of question one, we should compare the results of the obtained SNR with the recommendations of 3*sigma for the hard thresholding and 3/2*sigma for the soft thresholding.

说明：  《ofdm关键技术与应用》（汪裕民）一书中第10章有详细说明，在MATLAB上跑过，没有问题(&quot Ofdm technology and application&quot (Wang Yumin) Chapter 10 of the book are detailed in MATLAB, Running, no problem)

利用DFT实现两轮信号相位差计算，包含谐波信号污染，白噪声信号污染分析(Phase difference between two signals to achieve the use of DFT calculations, the signal containing harmonics pollution, contamination white noise signal analysis)

画圆，，复杂背景下，圆心的中心定位，使用的是霍夫变换(Circle, complex background, the center of the circle' s center position, using a Hough transform)

Hi every one this code contain the bitplane slicing of the given gray scale image

基于压缩感知理论的MRI一阶快速算法软件包(a first order fast algorithm package based on the theory of compressed sensing )

信号在信道进行传输时，经常会出现串扰，采用基于最大似然序列估计（MLSE）的电子色散均衡器的方法，克服光纤通信中的由各种色散引起的码间干扰。 研究基于最大似然序列估计（MLSE）的均衡器，采用维特比算法实现，用matlab仿真出采用MLSE后的性能指标（眼图和误码率）的提升。 (Signal transmission channel, often occur crosstalk, based on the maximum likelihood sequence estimation (MLSE) method for electronic dispersion equalizer, overcome the optical fiber communication in a variety of dispersion caused by intersymbol interference. Research Based on the maximum likelihood sequence estimation (MLSE) equalizer, using the Vitby algorithm, the performance index using MLSE after matlab simulation (eye diagram and bit error rate) promotion.)

说明：  对通信系统中的多采样信号进行matlab编程，掌握采样的方式(On the communication system for multi-sampled signal matlab programming, master sampling methods)

说明：  matlab 的随机森林代码，很不错，学习rf必备(matlab code for random forests, very good)

着光纤光栅的技术的日益成熟，由于其具有插入损耗低,偏振相关性低,尺寸小以及成本低等优势(Fiber grating technology has become more sophisticated, because of its low insertion loss, low polarization dependent, small size and low cost advantage)