Cap01_Introduction-to-Wireless-Propagation

ofdm 介绍的文章，含原理与实例论证（含图） ，附件中是仿真代码，可单步跟踪查看，很好的学习资料(OFDM introduction of the article, including theory and examples of argumentation (including map), the annex is the simulation code, can single-step tracking of view, a very good learning materials)

风力发电系统中的风力机模型，包含升速箱模型。(Wind power system wind turbine model, including model or speed box.)

matlab下载用到的激活文件，实在不知道怎么藐视(matlab download activation files used, it is not to know how contempt)

his is a direct and complete translation of the Gauss codes of Bai, J. and P. Perron (1998) Estimating and Testing Linear Models with Multiple Structural Changes Econometrica, vol 66, 47-78 and Bai, J. and P. Perron (2003) Computation and Analysis of Multiple Structural Change Models Journal of Applied Econometrics, 18, 1-22, provided by Pierre Perron (version 3, October 11, 2004). All the notice in the original Gaiss codes remain valid. For users, run brcode.m . The procedure is explained in the same m file and in each function file. June 20, 2012 Yohei Yamamoto Email: yohei.yamamoto@econ.hit-u.ac.jp

16QAM下行链路仿真 调制 解调 误码率(16QAM MODULATION Demodulation)

NC-OFDM在六径瑞利衰落信道下的性能分析(NC-OFDM in the six path Rayleigh fading channel performance analysis)

1. 给一段原始的语音信号（可以是自己录制的一段语音），加上一频率为3.8kHz的高频余弦噪声和频率为3.6kHz的高频正弦噪声（幅度自己可以选择），用窗函数设计一滤波器（要求最小阻带衰减为50dB）对加噪后的语音信号进行滤波，画出滤波器的频率响应曲线，画出滤波前后的时域图和频谱图。 需要用到的函数： fir1 用窗函数设计FIR滤波器的函数 2. 用GUI设计一界面（如图1所示）完成如下功能： 1） 输入一语音信号，画出语音信号的时域图和频谱图； 2） 对语音信号加噪处理，画出加噪后的时域图和频谱图； 3） 给定滤波器的性能指标，采用几种不同的方法设计滤波器对加噪信后进行滤波，画出各滤波器的频率响应曲线，画出滤波后的时域图和频谱图。 (1. to some of the original speech signal (which can be a voice you record yourself), plus a cosine frequency of 3.8kHz frequency noise and frequency of 3.6kHz frequency sinusoidal noise (in the range that they can choose), with a window function to design a filter (requires a minimum stop band attenuation is 50dB) after adding noise to the speech signal is filtered, the filter frequency response curve to draw, draw diagrams and time-domain spectrum before and after filtering. Need to use the function: function fir1 with window function design FIR filter design 2. Using a GUI interface (Figure 1) complete the following functions: 1) an input speech signal, the speech signal in the time domain to draw graphs and spectrum 2) adding noise to the speech signal processing, draw diagrams and time-domain plus noise spectrum after 3) to set the filter performance, using several different methods designed to filter letter after adding noise filtering, draw the frequency response curve of each )

MATLAB菜鸟入门必备资料，帮助学习MATLAB编程及其技巧！(Getting Started with MATLAB rookie essential information to help to learn MATLAB programming and skill!)

OFDM.simulation.by.matlabNguon tiensitranxuannamhocvienkythuatquansu

说明：  BPSK的MATLAB编码，课堂上作业，采用simulink来做(BPSK的MATLAB编码，采用simulink来做。。。。。。)