02_OFDM_Simulation_Using_Matlab

UWB，超宽带信号分析必用的子函数，第11部分！(UWB, ultra-wideband signal analysis will be used for Functions, Part 10!)

组合算法 Matlab中有函数nchoosek，它是返回全部可能的给合数，本例是一个个地产生组合(Combination algorithm In Matlab function nchoosek, it is possible to return all composite numbers in a matrix, in this case is a combination of one to generate)

在瑞丽衰落加高斯白噪声信道上进行的BPSK调制代码，代码解释详细，非常适合初学者(Decline in Ruili plus white Gaussian noise channel for the BPSK modulation code, the code to explain in detail, very suitable for beginners)

Essential tips for Matlab Programing

小波分析理论与matlab实现教程源程序(Wavelet analysis theory and Matlab tutorial source)

这是从matlab上down的源文件。上面显示调试通过(This is down from the matlab on the source file. Shown above debugging through)

MATLAB中也同样有许多有意思的实例，为提高读者对MATLAB和Simulink的兴趣，特举部分以供参考。(MATLAB, there are also many interesting examples, in order to enhance the reader' s interest on MATLAB and Simulink, special give some for reference.)

time-invariant degradation models and stationary signals and noise, the classical Fourier domain Wiener filter, which can be implemented in O(N logN) time, gives the minimum mean-square-error estimate of the original undistorted signal. For time-varying degradations and nonstationary processes, however, the optimal linear estimate requires O(N2) time for implementation. We consider filtering in fractional Fourier domains, which enables significant reduction of the error compared with ordinary Fourier domain filtering for certain types of degradation and noise (especially of chirped nature), while requiring only O(N logN) implementation time. Thus, improved performance is achieved at no additional cost. Expressions for the optimal filter functions in fractional domains are derived, and several illustrative examples are given in which significant reduction of the error (by a factor of 50) is obtained.

说明：  Arima模型选择差分项，并验证序列正确性(Arima model validates sequence correctness)

无线信道的建模与仿真 诠释了各种衰落信道的仿真及误码率分析如瑞利信道等等(wireless channel simulation)