juanji

power_svpwm.rar,功率电子领域matlab仿真文件，已经验证过，程序运行正常(power_svpwm.rar, Power electronics field matlab simulation file, has already been verified, the normal operating procedures)

matlab编程所得一首歌曲（matlab太强大啦）(The resulting matlab programming a song (matlab too powerful friends))

关于采样定理的验证的matlab程序，有利于理解带通采样(Verification sampling theorem on the matlab program that facilitates understanding bandpass sampling)

h.264帧内预测的matlab程序随着视频编码技术的迅速发展，性能更好的H．264标准越来越成熟，被广泛应用于许多多媒体应用领域。(H. 264 frame of matlab with video forecast coding technology rapid development, better performance of h. 264 standard more and more mature, are widely used in many multimedia applications. )

基于matlab smith圆图画法。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。(Circle drawing method based on matlab smith. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .)

We address the problem of blind carrier frequency-offset (CFO) estimation in quadrature amplitude modulation, phase-shift keying, and pulse amplitude modulation communications systems.We study the performance of a standard CFO estimate, which consists of first raising the received signal to the Mth power, where M is an integer depending on the type and size of the symbol constellation, and then applying the nonlinear least squares (NLLS) estimation approach. At low signal-to noise ratio (SNR), the NLLS method fails to provide an accurate CFO estimate because of the presence of outliers. In this letter, we derive an approximate closed-form expression for the outlier probability. This enables us to predict the mean-square error (MSE) on CFO estimation for all SNR values. For a given SNR, the new results also give insight into the minimum number of samples required in the CFO estimation procedure, in order to ensure that the MSE on estimation is not significantly affected by the outliers.

说明：  地震波场是指有地震波传播的空间。本程序用于计算二阶精度规则网格，二维波场模拟。(Seismic wave field refers to the space where seismic wave propagates. This program is used to calculate second-order precision regular grids and two-dimensional wave field simulation.)

Kernel adatron, solving svm with gradient ascend method. fast and accurate.

this folder contain image cancer dataset

A simple code for selective mapping