wifi

图论研究中的图着色问题的matlab程序，非常好用啊！(Study of Graph Theory Graph Coloring Problem of matlab program, very easy to use ah!)

The users in each cell are divided into cell-interior and celledge users. The categorization is based on the geometry factor and we take into acount the user distance its serving BS, considering a distance threshold Dth beyond of which the user is considered as cell-edge user.

国际上机器学习方面的教材，得到国际上的公认 (Aspects of machine learning materials, get international recognition)

数字基带系统将数字信号从时域上看时数字滚降，需要画出滚降前后的波形展示出来。频域上带宽变化了。输入滤波器之前的波形与采样判决之后的波形。采样判决前的频谱。 采样判决后的码型。 2、眼图（采样判决之前的眼图）（信噪比大眼图清晰） 3、误码曲线，（横坐标时信噪比，纵坐标时误码率） 4、Arfa变化对误码特性的影响，变好还是变差(变好)，眼图清晰度变化（清晰），传递函数的带宽的变化。（带宽越大）(1.Digital baseband system point of view the digital signal from the time domain when the number of roll-off, you need to draw the waveform displayed before and after the roll-out. The frequency domain, the bandwidth change. Input filter and sample ruling before the wave after wave. Sample pre-judgment spectrum. Sampling pattern after the verdict. 2, the eye diagram (eye before sampling decision) (SNR big eye clear) 3, the error curve (abscissa when the signal to noise ratio, bit error rate when the vertical axis) 4, Arfa impact of change on BER performance, get better or worse (getting better), change of eye-definition (clarity), the transfer function of the bandwidth changes. (The greater the bandwidth))

双谱线插值法程序，包含各种常见的窗函数，采样频率和点数可以自己设定。(The Double Line interpolation procedures, including a variety of common window function, sampling frequency and the number of points can be set.)

说明：  根据设计指标提取广义切比雪夫滤波器阶数和传输零点位置，参照《新型微波滤波器的理论与设计》_褚庆昕一书，并提供了滤波器耦合矩阵的计算程序，参照Richard Cameron的方法。(The order of the generalized Chebyshev filter and the position of the transmission zero point are extracted according to the design indicators. Refer to the book "Theory and Design of New Microwave Filters" _ Chu Qingxin, and provide a calculation program for the filter coupling matrix.)

该算法是CHAN定位算法，运用函数的形式编写，利于初学者学校规范化的编程方法(A simple and efficient estimator for hyperbolic location)

matlab PPT教程 电子工业出版社 罗建军 主编(matlab PPT tutorial)

Lexical Analysis, in Compilers

二维绘图—MATLAB(有关matlab绘图的各种基本知识，实用)(2 d graphics- MATLAB)