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this is about powerfactor correction circuit

7 ngoi lang ma tap 1 truyen ma doc kha hay

《MATLAB程序设计教程》电子教案 有图形设计，数据分析等(" MATLAB Programming Guide" e-lesson plans are graphic design, data analysis, etc.)

AF DF SER MATLAB program simulink

基于能量检测的频谱感知.由于实际信道中的多径和阴影效应，单个认知用户频谱感知的性能受到影响，因此需要靠不同用户间的协同频谱感知来对抗多径和阴影效应。本设计要求在文中采用一种协作机制，即两用户进行协作频谱感知，提高主用户的检测率，减少检测时间，并且得到捷变增益。要求给出仿真结果。(spectrum sensing in cognitive radio based on energy detection.As the channels in diameter and shadow, not a single user spectrum of capabilities and therefore need different between a user to the spectrum is perceived as more and the effect. this design for the use of a coordination mechanism, the two users collaborate spectrum, the detection rate of increase and decrease the test of time and get a change requires immediate gain. some emulation. )

说明：  简单的404错误页面，用途网站优化，可以增加您的网站权重。(Simple 404 error page, use Website Optimizer, you can increase your website weights.)

单高斯模型是检测运动目标有效方法，这是一种matlab实现。(Single Gaussian model is an effective way to detect moving targets, which is a matlab achieve.)

小波阈值降噪的例程，可以选择多种原始信号及多种阈值方式。(Wavelet threshold noise reduction routine, you can choose a variety of the original signal and multi-threshold approach.)

PLS分类，主要用于多数类与少数类的分类。(pls classifier)

是在时域上做相关，直接用covn做相关，计算量比较大，估计比较明显。(Is done in the time domain correlation and directly related with covn, calculate than the larger, more obvious estimate.)