Virtual-Reality-Toolbox-4.8

史密斯图(Smith chart)是一款用于电机与电子工程学的图表，主要用于传输线的阻抗匹配上。在复平面上采用双线性变换。实部 r=常数和虚部 x=常数，两族正交直线变化为正交圆并与反射系数|G|=常数和虚部x=常数套用而成。本文档通过MATLAB来编写程序，绘制一个完整的SMITH圆图(Smith figure (Smith chart) is a for electrical and electronic engineering chart, mainly for the transmission line on the impedance matching in the plane bilinear transformation real part r = constant and imaginary part x = constant, two RACES straight for orthogonal round orthogonal changes and and reflection coefficient | G | = constant and imaginary part x = constant apply mechanically and into this document to write the program through MATLAB, draw a complete Smith circle diagram )

LDPC的解码程序，可以更理解LDBC的解码过程(LDPC decoding process can be more to understand LDBC decoding process)

orbits - plot orbits around Earth in an interactive manner

说明：  一个简单的自适应lms算法，用matlab做的仿真，很适合初学者(A simple adaptive lms algorithm, the simulation with matlab do, it is suitable for beginners)

基于MATLAB的GMSK和基带信号功率谱密度仿真实验开发 (Experiments development of GMSK and power spectral density of base-band signals based on Matlab simulation)

用压缩测量的方法对振动信号进行处理，并显示，演示压缩传感对信号处理的过程(Measurement method with compression of the vibration signal processing, and display, presentation compression sensing process of the signal processing)

斯坦福大学机器学习课程的一个源代码例子，对于机器学习和deep learning的学习研究很有帮助(this codes are from standford university,which are about machine learning and deep learning.they will be helpful in this research field)

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.

永磁同步电机滑模控制程序，电流环速度环采用滑模控制(Sliding mode control procedures, current loop speed control loop sliding mode)

有关于数值代数中Guass-Seidal迭代法和SOR迭代法的完整源码。(The complete source about the numerical algebra Guass-Seidal iterative method and SOR iterative method.)