xiaobo

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.

具有完全识别车牌的matlab源代码，执行效率高！(With full recognition of vehicle license plate matlab source code, high efficiency.)

DC2DC BUCK CONVERTER

that tells how to convey the transfomator

一维QKF算法实现，附每步说明，与真实值进行比较，谢谢~(One-dimensional QKF algorithm, with each step instructions, with the real value, thank you ~)

混凝土框架弹塑性地震响应分析,采用三次三线性退化模型(seismic response of RC structure)

matlab程序，FFT变换matlab程序，有助于初学者学习(matlab program，it will help u to study)

cancer detection using wavelet

利用小波的能量距作为特征进行雷达波形的特征提取(From the use of wavelet energy as a radar waveform characteristics of the feature extraction)

说明：  求解方阵所有的特征值以及特征值对应的特征向量(all eigenvalue and the corresponding eigenvectors for square matrix)