awgn--cdma

UMTS Network Simulator Code

利用Matlab仿真软件，完成如图1所示的一个基本的数字通信系统。信号源产生0、1等概分布的随机信号，映射到16QAM的星座图上，同时一路信号已经被分成了实部和虚部，后边的处理建立在这两路信号的基础上。实部、虚部信号分别经过平方根升余弦滤波器，再加入高斯白噪声，然后通过匹配滤波器（平方根升余弦滤波器）。最后经过采样，判决，得到0、1信号，同原信号进行比较，给出16QAM数字系统的误码。(Using Matlab simulation software, as shown in Figure 1 to complete a basic digital communications systems. Signal source such as arise over the distribution of 0,1 random signal, is mapped to 16QAM constellation diagram, at the same time all the way the signal has been divided into real and imaginary parts, behind the deal with the establishment of these two signals in the basis. Real part, imaginary part of the signal, respectively, after a square root raised cosine filter, then add white Gaussian noise, and then through the matched filter (square root raised cosine filter). Finally, after sampling, the verdict has been 0,1 signal, to compare with the original signal is given 16QAM digital system error.)

the programs are an introduction to DSP ,the programs illustrate the frequency response ,impulse response and magnitude response

学习matlab很好的PPT课件，还有很多经典程序(matlab study)

Spread spectrum merupakan sistem dimana sinyal yang dikirimkan memiliki bandwidth yang jauh lebih lebar daripada bandwidth sinyal informasinya sendiri. Proses pelebaran bandwidth sinyal informasi ini dilakukan pada sisi pengirim dan disebut spreading. Sebaliknya, proses penyempitan kembali bandwidth sinyal informasi dilakukan di sisi penerima, dan disebut despreading. Pada gambar 1 berikut menunjukkan proses yang terjadi pada sistem spread spectrum.

免疫方法来解决TSP问题，方法不错，程序有注释(Immunological methods to solve TSP problem by good procedure Notes)

matlab基础学习资料实例，包括符号运算，绘图以及基础编程，也包含线性代数实验及matlab在在线性代数中的应用(Examples matlab-based learning materials, including symbolic computation, graphics and basic programming, linear algebra also contains experimental and matlab applications of linear algebra)

MATLAB内置二重积分 可以实现二重积分等功能(MATLAB built-in double integral)

this matlab file to simulate mimo capacity

系统仿真代码 MATLAB 基于CMMB的仿真源文件 不是原创(nothing )