Week06

Cognitive Radio / Cognitive Network System simulator in matlab source code. To Simulate Cognitive Radio System which is so effective that it can harvest more band-width in highly desired bands than is currently in use!

matlab的教学案例分析，详细介绍了matlab的一些功能(matlab teaching case studies, detailing some of the features matlab)

s变换，是当前比较流行的时频分析算法，可以用于地震数据时频分析和频谱分析，该程序基于matlab平台，实现了s变换和反变换。(s transformation, is the more popular time-frequency analysis algorithms, can be used for seismic data analysis and time-frequency spectrum analysis, the program based on matlab platform realize the s transform and inverse transform.)

实现读入一段语音，并求出这段语音的倒谱，绘出波形图。(Realize read in a speech, and work out a speech cepstrum, draw waveform figure.)

30个案例分析 神经网络的30个案例分析一书地29个案例(30 case analysis)

Exercices of Graphs, not resolves. SOme explanaitons

Root raised cosine filter implementation in matlab, with graphs of impulse and frequency response.

This function is a very simple application of FFT2 for an image to simulate the effect of bandpass filter with two cut off frequencies. One can easily modify the programme to do the processes for different images, and even implement highpass and lowpass filter

QPSK 在高斯信道下的调制解调的matlab仿真实现，可显示输入数据的波形表示，I支路和Q支路以及调制前、解调后、接收的波形、星座图等(In the Gaussian channel QPSK modulation and demodulation matlab Simulation, the waveform can be displayed, said input data, I branch and Q branch, and before modulation, demodulation, the received waveform, constellation, etc.)

采用10阵元的阵元间距为1/2波长的均匀线阵，估计2个不相干的信号源的波打方向。其中样本数为100，S/N分别为10dB，20dB。信号源来自-10°和40°。程序里面包含用MUSIC,RootMUSIC，ESPRIT,MVDR,F-SAPES算法实现的DOA估计(A 10-element array element spacing of 1/2 wavelength of the uniform linear array, it is estimated that two unrelated source wave hit direction. Wherein the number of samples is 100, S/N of 10dB, 20dB, respectively. Source from-10 and 40. DOA estimation program inside contains MUSIC, RootMUSIC, ESPRIT, MVDR, F-SAPES algorithm implementation)