Temprature

[数据挖掘]数据挖掘部分算法的matlab实现 C4_5 比较经典的代码([Data Mining] part of data mining algorithms compare classic C4_5 realize matlab code)

8个振动信号处理的经典matlab程序，是学习振动信号处理的重要基础知识。程序中的参数可以根据需要更改，通用性强。(8 vibration signal processing matlab classic procedure is to study the vibration signal processing an important foundation for knowledge. Process parameters may change, high universality.)

这是进行matlab的fft频响函数估计，它可以进行随机激励的频响估计(this is a program which is fft analysis it can uate frf that is random exict)

Embedded Zero tree algorithm......... used for compression...significant positive , significant negative, isolated zero, zero tree

Cannot create induction motor dq model.rar

There are 19 questions and 1 programming exercise. Some of them are very easy, some of them are really hard and challenging, and these will be marked as such. If you don’t want to be challenged too much, you can skip the hard questions

用ofdm方法产生超宽带uwb信号，并绘出信号图形。(Methods using ultra-wideband OFDM UWB signal and the signal mapped graphics.)

块状导频三种信道估计算法的比较，画出了图形进行比较(Three kinds of block pilot channel estimation algorithm, draw a graph to compare)

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：  这是关于非线性单摆的混沌解法后期出现的庞加莱图的matlab程序 (This is a nonlinear pendulum on the latter part of the chaotic solution of the Poincare map matlab program)