QPSK-OQPSK

自己写的2fsk调制解调程序，相比之下比较易懂。其中还附有函数程序。(Their own written procedures 2FSK modem, compared to relatively easy to understand. Which also included function procedures.)

Chapoly 通过求矩阵特征多项式的根来求其特征值. pmethod幂法求矩阵的主特征值及主特征向量. rpmethod瑞利商加速幂法求对称矩阵的主特征值及主特征向量. spmethod收缩法求矩阵全部特征值. ipmethod 收缩法求矩阵全部特征值 dimethod位移逆幂法求矩阵离某个常数最近的特征值及其对应的特征向量 qrtzQR基本算法求矩阵全部特征值. hessqrtz海森伯格QR算法求矩阵全部特征值. rqrtz瑞利商位移QR算法求矩阵全部特征值. (Chapoly characteristic polynomial by the root of a matrix to find the eigenvalues. Pmethod power method of a matrix eigenvalue and the principal eigenvectors. Rpmethod Rayleigh quotient accelerated power method Symmetric matrix eigenvalue and the principal eigenvectors. Spmethod contraction Law of the value of all the characteristics of a matrix. ipmethod contraction method the value of all the characteristics of a matrix inverse power law dimethod displacement from a constant of a matrix eigenvalue and its corresponding nearest feature vectors qrtzQR all the characteristics of the basic algorithm the value of a matrix. hessqrtz Heisenberg QR algorithm is the value of all the characteristics of a matrix. rqrtz Rayleigh quotient shift QR algorithm is the value of all the characteristics of a matrix.)

教会我们怎样把ABAQUS HE MATLAB LIAN JIE QI LAI

说明：  循环包络算法，用于计算信号的包络的一种方法(cyclic envelope)

该matlab程序可以读取mit-bin心电数据(The matlab program can read the MIT-bin ECG data)

说明：  To improve the boiler drum level control system of a power plant, the three challenging issues encountered include (1) effect of ‘‘false water level’’, (2) controller parameter mismatches due to variant working conditions and (3) signal noise caused by uncertainties of drum level. In this paper, based on analyses of the drum level signal, an adaptive derivative action is presented to monitor steam flow, and thus, the effect of ‘‘false water level’’ is weakened. The uncertainties of parameter mismatches and noise are predicted by developing a Grey predictor based algorithm (GPBA). In order to resolve the three problems and further control performance, an adaptive technique is combined with the GPBA to develop an adaptive Grey predictor based method. Finally, concrete simulations give that the proposed method has obvious superiority over conventional methods.

《通信系统仿真原理与无线应用》系统地介绍通信系统的设计、分析和仿真方法，还提供了大量极具参考价值的仿真实例。《通信系统仿真原理与无线应用》的全部仿真程序都是采用MATLAB编写的。这不仅方便读者理解仿真的实现过程，还允许读者修改或使用这些代码段来进行自己的仿真开发。章后提供了大量的参考文献和经过精心设计的各类练习题，方便教学。此为中文翻译本。(Principles of Communication Systems Simulation with Wireless Applications is a hands-on, example-rich guide to simulating wireless communications systems. The first book to present complete MATLAB simulation models for predicting the impact of design changes, it treats every aspect of simulation: sampling, signal and system representations, filters, noise, Monte Carlo simulation, postprocessing, nonlinear and time-varying systems, waveform and discrete channels, co-channel interference, and more. It includes four detailed case studies.)

说明：  实现两个指数信号的卷积，通过绘制出两个输入的指数信号的图形进行卷积后的图形说明卷积的作用。(Convolution of two exponential signals to achieve, by drawing out the index of the two input signals after convolution graphics graphic illustration of the role of convolution.)

地心坐标系下的经纬高坐标数据，转换为东北天坐标系下的坐标。输入为经纬高，单位为°。 matlab文件实现，调用函数名为：ECEFtoENV(Geocentric latitude and longitude coordinates of the high-coordinate data is converted to Northeast day coordinate system coordinates. Latitude and longitude input is high, the unit is.)

单径或多径瑞利衰落信道仿真，使用高阶累积量对MPSK信号进行调制识别，考虑雨衰 阴影 和多径影响。( Single path or multipath Rayleigh fading channel simulation, Using high-order cumulants of MPSK signal modulation recognition, Consider shadow rain attenuation and multipath effect.)