BandSolver2

qpsk_modulation in matlab

Recursive least square in matlab

matlab code for GA SVM

加速度计原始数据卡尔曼滤波,对加计原始数据的卡尔曼滤波matlab程序(Kalman filtering raw accelerometer data, plus the raw data for the Kalman filter matlab program)

统计学习编程题目，是在做作业的时候碰到的一些小例子，对统计学习课程的学习有帮助(Statistical learning programming problem, some small examples encountered at homework time, can be helpful to learn the statistical learning courses)

说明：  系统校正,对MATLAB学习者帮助很大(correction system, MATLAB great help learners)

动态倒计时牌，目标时间（即倒计时截至时间）的年、月、日、时、分、秒以及倒计时主题可以根据不同主题由用户动态设定，并且在此设定基础上在屏幕上显示距离相关主题到达之时还有n年、n天和n秒（其中的三个n各不相同，且随着程序运行动态变化），以北京时间作为主要显示板块，同时显示纽约、伦敦时间的附加倒计时板块。程序中除了刚运行时给出一次当前标准时间值（或读出系统当前时间）外，在程序运行期间应在自己独立的用户时钟控制下，而不受外界输入影响和系统时间的束缚。(Dynamic countdown, the target time (ie, as the countdown time) of the year, month, day, hour, minute, second, and the countdown theme can set different themes by the users, and in this setting is displayed on the screen on the basis of distance-related There are n the theme of the time of arrival, n day n seconds (one of the three different n, and with the dynamic program runs), to Beijing as the main display section, also shows New York, London time, the additional countdown Plate. In addition to just run the program once the current standard time value is given (or read the current system time), but during the program should be independent in their own under the control of the user clock, and free from outside influence and input system time constraints. )

很好很实用的一个小程序！好好体会，有很大的收获(very good)

周期图法谱估计需要对信号序列“截断”或加窗处理，其结果是使估计功率谱密度为信号序列真实谱和窗谱的卷积，导致误差的产生。本程序分别设计了周期图法,最大熵功率谱估计和Welch法以及它们的对比,最大熵功率谱估计目的是最大限度地保留截断后丢失的“窗口”以外信号的信息，使估计谱的熵最大。(Periodogram spectrum estimation signal sequence needs to " cut off" or add the window handle, the result is an estimated power spectral density of the signal sequence of the real spectrum and spectral convolution window, resulting in the generation of errors. The procedures were designed periodogram, maximum entropy power spectrum estimation and the Welch method and their comparison, the maximum entropy power spectrum estimation purpose is to maximize the retention of truncated after the loss of the " window" than the information signal, the entropy of the estimated spectrum maximum.)

主元分析是对数据进行平移和旋转变换，提取几个比较重要的变量来表示原始空间中的重要信息，实现对数据的降维(Principal component analysis for data translation and rotation transformation to extract a few of the more important variables to represent the important information in the original space, to achieve the data dimensionality reduction)