svm

cost-273 MIMO信道的MATLAB仿真源代码(cost-273 MIMO channel simulation of MATLAB)

利用LFSR生成伪随机序列（m序列） 对待隐藏的图像进行加密然后利用线性插值的方法隐藏于载体图像中。 代码很完整 用的是MATLAB7.0(Use LFSR to generate pseudo-random sequence (m sequence) to treat encryption to hide the image and then use linear interpolation method of hidden images in the vector. Complete code is used in MATLAB7.0)

Training based channel estimation

这是由电子科技大学那里弄来的容积卡尔曼算法模板 希望对大家有用(This is a volume of Calman algorithm for template by the University of Electronic Science and technology to get to hope useful for everyone)

说明：  简单的音调识别系统，能够识别出钢琴弹奏出的音符/(Simple speech recognition system based on Matlab can get the final result through sample training.)

It is a quite useful way to learn Matlab in beginning level

介绍了 Cohen类双线性时频分布并针对交叉干扰项影响无法完全消除的问题进行了重排时频变换以提取及分辨 含有白噪声和窄带周期干扰的局部放电信号。处理仿真和现场检测到的局部放电超声信号时根据白噪声和窄带 周期干扰信号在时域上的平稳性特性发现重排 Cohen类时频变换方法不仅可以很好地将局放信号和背景噪声以 及窄带周期干扰信号分辨开来,而且大大减弱并抑制了交叉干扰项的影响,保持了更高的时频分辨率和时频聚集 性,从而验证了重排 Cohen类时频变换方法的有效性。 (In order to express the partial discharge ( PD) information of gas insulated switchgear ( GIS) in time-frequency domain, weintroduced theCohen? s class bilinear time-frequency distribution and its reassigned time-frequency transform method to pick up and distinguish theultrasonic signals in field from the whitenoises and narrow band periodic interference signals using the acousticemission ( AE) technology. After the processing of the simulated and PD ultrasonic signals in field, and according to the stationary feature of white noises and narrow band interference signals, wedraw a conclusion that the reassigned time-frequency distribution method can not only distinguish thePD signal from back ground noises and narrow band interference signals, but also decrease and restrain the influenceof cross-items, and acquire better time )

利用matlab 软件编程的三次样条插值函数(matlab spline)

16v280柴油机总切向力计算过程的matlab程序，可计算一个循环的总切向力(16v280 diesel matlab program, the total shear force calculation process computable a loop the total tangential force)

小波分析理论与MATLAB7实现，是本电子书，需要安装超星电子图书阅读器来阅读。(Wavelet analysis theory and MATLAB7 realization is the e-books, need to install Superstar electronic book reader to read.)