yongyuchansheng512dianshuju

使用matlab对qpsk调制进行仿真，得到在高斯白噪声信道和瑞利信道的误码率以及解调后的星座图 (matlab qpsk)

matlab时频分析配套源码第14章的程序，请大家共享(Matlab time-frequency analysis supporting source Chapter 14 procedures, please share)

7On the Number of Rectangular Tilings.pdf

pwelch可以实现matlab中的PSD估计，上传资料为pwelch的code(pwelch matlab can estimate the PSD, upload data to the code pwelch)

使用matlab实现包络检波，调制解调。很好的画出包络信号。(Use matlab realize envelope detector, modulation and demodulation. Good draw envelope signal.)

bilateral Filter, 边缘保留滤波器，用于图像处理。(bilateral Filter, to retain the edge filter for image processing.)

双馈风力发电机Simulink仿真模型，内部计算步骤清晰，已经做修改可直接运行。(Simulink model of doubly fed induction generator, the internal calculation steps clear, has been modified can be run directly.)

In a multiple transmit antenna, single antenna per receiver downlink channel with limited channel state feedback, we consider the following question: given a constraint on the total system-wide feedback load, is it referable to get low-rate/coarse channel feedback from a large number of receivers or high-rate/high-quality feedback from a smaller number of receivers? Acquiring feedback from many receivers allows multi-user diversity to be exploited, while high-rate feedback allows for very precise selection of beamforming directions. We show that there is a strong preference for obtaining high-quality feedback, and that obtaining near-perfect channel information from as many receivers as possible provides a significantly larger sum rate than collecting a few feedback bits from a large number of users.

it is about kmeans clustering

this is a matlab code for antenna of near a conducting cylinde and huygens principle.