Pcrc

one quadrant pwm converter(matlab)

该算法为fastica的c＋＋版版本，有很好的分离效果。 (The algorithm for the fastica the c++ Version, good separation.)

denoising filters such as Average, Median, Gaussian, Wiener, Min-order-statistic, Maxorder-statistic and Median-order-statistic are used. Based on the images obtained by the mentioned filters, it is become obvious clear that for the given noisy image the Min filter acted much better than the other filters. Order-statistic Median and Gaussian filters are the ones that have a second and third good result respectively. That is way can conclude that the existing noise in the given image was Salt noise.

本次实验是要我们先产生心电信号，再加噪声再滤波。由一个心电信号数据表输出心电信号，由于已知的心电信号有噪声，所以我先将信号进行滤波，得到正确的心电信号。再加噪声，通过滤波可以得到高频和中频噪声，将原信号加上噪声显示再滤波。每次的时域信号都画出了他们相应的频谱，便于观察。每次的滤波我也尝试了不同的滤波器。(This experiment is to produce our first ECG, together with noise and then filtering. ECG data from a table output ECG, ECG as a known noise signal is filtered first, I get the correct ECG. Plus noise can be obtained by filtering high-frequency and intermediate frequency noise, the original signal plus noise shown again filtering. Time-domain signals each draw their corresponding spectrum, easy to observe. Every time I try to filter the different filters.)

Removal noise in the channel using Reedsolomon codes

说明：  PMP强化记忆手册2008版本，很好的资料：）(Enhanced memory PMP Manual 2008 edition, very good information:))

集合了几种用于实现功率谱密度函数的估计代码(Collection of several used to achieve the estimated power spectral density function code)

本程序实现不用对数据进行2抽取和2插值的快速小波分解,只需对滤波器进行2插值即 可，所以不要求数据的长度为2的幂次方，共分解了3次，然后进行了重构！！！(This procedure achieved without the data extraction and 2 Fast 2 interpolation wavelet decomposition, only 2 of the interpolation filter that can be, so the data length does not require a power of 2, a total break down three times, then refactored! ! !)

matlab实现的指纹识别，含有gui系统界面(matlab implementation of fingerprint identification, the system contains a gui interface)

说明：  司守奎、孙玺菁《数学建模算法与应用》随书光盘 所有代码 经典小黄书的代码 数学建模比赛必备(Si shoukui, sun xijing. Mathematical modeling algorithm and application. Cd-rom All of the code Classic little Yellow Book code Mathematical modeling competition required)