tongyong

说明：  本程序可以完成单级倒立摆反馈控制系统设计。(The Program can realize the inverted pendulum feedback control design)

说明：  用快速傅立叶变换计算地形剖面的功率谱密度。(Calculate the power spetral density of the topographic profile)

1）先利用文件Lorenz.m求解出Lorenz系统，并把其数组保存成名字为un.mat的文件。 2）直接运行文件Lorenz1.m 便可统计出Lorenz系统的轨道(a) first use of document Lorenz.m solved Lorenz system, and the preservation of its array of un.mat name into the paper. 2) Run the file directly Lorenz1.m Lorenz will be the statistics on the track)

说明：  率失真函数是在给定信源和失真度量情况下，求满足保真度准则的平均信息率的极小值。本程序给出了两种特殊情况下的率失真函数的计算(Rate-distortion function is a given source and distortion measure case, seeking to meet the fidelity criteria, the average information rate of the minimum. This procedure presents two special circumstances, the calculation of rate-distortion function)

卡尔曼滤波器的设计，利用matlab编写，主要的内容就是这样的(The kalman filter design, use matlab, the main content is such )

MS-AR：马尔科夫取值转移自回归模型，状态可取两种状态，也可以取多种状态。(MS-AR：the program of Markov Switching autoregressive model.)

适用于IEEE5，9,14,30节点的潮流计算程序，采用直角坐标系，牛拉法求解。(Applicable IEEE5, flow calculation program 9,14,30 nodes, using Cartesian coordinates, cattle Rafah solving.)

matlab开发GUI地震数据显示工具，可以作为地震处理人员学习地震处理的起点。matlab是基于矢量运算，而地震剖面就是一个矩阵。用matlab来处理地震数据，用于学习研究地震处理的方方棉面，实在是方便实用。(matlab seismic data show the development of GUI tools can be used as seismic processing, seismic processing to study the starting point. matlab is based on the vector operation, and the seismic profile is a matrix. Using matlab to handle seismic data for the study of seismic processing Fangfang cotton face, it is convenient and practical.)

计算信号的谱特性，包括频谱特征及功率谱特征。(Calculate the spectral characteristics of the signal, including spectral characteristics and power spectral features.)

digital watermarking is a process by which a user-specified signal is hidden or embedded into another signal , for example digital content such as electronic documents, images, sounds and video [2]. The use of digital video applications such as video-conferencing, digital television, digital cinema, distance learning, videophone, and video-on-demand has grown very rapidly over the last few years. Today it is much easier for the digital data owners to transfer multimedia data over the internet, and hence the data could be perfectly duplicated and rapidly redistributed on a large scale. Thus, the importance of copyright protection for multimedia data has become more critical. Digital watermarking is an effective way to protect the copyright of multimedia data even after its transmission there is urgent demand for techniques to protect the original digital data and to prevent unauthorized duplication or tampering.