DelayTime-Autoralation

MATLAB神经网络工具箱函数说明，对神经网络工具箱进行了详细说明，适合初学者(MATLAB neural network toolbox function description of the neural network toolbox is described in detail, suitable for beginners)

对mit/db心电数据库中的心电数据进行读取和绘制的程序(On mit/db ECG ECG data in the database for reading and drawing program)

说明：  DCT域的嵌入程序，可以获得较高的鲁棒性，且嵌入秘密信息后的不可感知性也很好。(DCT embedded procedures, get higher robustness, and secret information embedded in the perception is also not very good.)

提取信号七个基于瞬时信息的特征：零中心归一化瞬时幅度功率谱密度的最大值,零中心归一化瞬时幅度绝对值的标准偏差，零中心非弱信号段瞬时相位非线性分量绝对值标准偏差，零中心非弱信号段瞬时相位非线性分量标准偏差，零中心归一化的非弱信号段瞬时频率绝对值的标准偏差，一个信号段的归一化瞬时频率功率谱密度的最大值，根据信号 QPSK 和16QAM在 XI 轴投影的不同表现，提出特征参数。(extract information based on the instan eous features : In the center is one of the instantaneous rate of the power spectral density of the maximum, is a center to the absolute value of the instantaneous rate of the standard deviation, Non-zero weak signal instantaneous phase of the nonlinear component absolute standard deviation, Non-zero weak signal instantaneous phase of the nonlinear component standard deviation, In the center is one of the non-weak signal of the absolute value of the instantaneous frequency standard deviation, a signal to one of the instantaneous frequency of the power spectral density of the maximum, According to 16QAM and QPSK signals XI axis projection in the different performance parameters raised.)

CONTENT BASED IMAGE RETRIVAL USING PIRAMIDAL STRUCTURE WAVELET TRANS FORM

按照给定指标采用模拟低通滤波器（巴特沃思低通或者切比雪夫低通）去逼近理想模拟低通滤波器 ，然后通过双线性变换法对模拟滤波器进行数字化，得到数字滤波器 。(According to a given target analog low-pass filter (Butterworth or Chebyshev low-pass low-pass) to approximate the ideal analog low-pass filter, then through the bilinear transformation method to digitize the analog filters, digital filters has been .)

MATLAB7.0 中的模拟仿真软件Simulink 仿真设计AM、DSB、SSB调制与解调系统。完成调制信号分析，并绘制相关的波形图及频谱图。(The simulation MATLAB7.0 simulation software Simulink design AM, DSB, SSB modulation and demodulation system. Complete modulation signal analysis, and draw the waveform and spectrum diagram related figure.)

说明：  主成分分析法，用于将低数据维度，减小有相关性的数据特征。(dimensionality reduction)

现代通信系统第8章 matlab程序源码(Modern communications systems in Chapter 8 matlab program source)

说明：  某离散系统的差分方程描述及该系统的传递函数描述及MATLAB仿真(A discrete system of difference equation and transfer function of the system description and MATLAB simulation)