linefitting

通常优化变量需要在制定的范围内选择，John D Errico开发了带有边界约束的最优化问题求解程序，并进行了改进(Optimization variables are usually required to develop a range of options, John D' Errico developed with the boundary constraints of optimization problem solving process, and an improved)

说明：  计算一端固定另一端自由梁结构的固有模态，有限元单元选择的为二自由度埃尔米特单元(calculation natural frequences of the beam structure)

进行FFT变换，在此基础上作频谱分析、功率谱分析等。(FFT transform, on the basis for spectrum analysis, power spectrum analysis.)

是一款对ABAQUS的二次补充开发的模型软件，开发步骤和内容在本文中详细给出，供大家参考(Is a model of added secondary development of ABAQUS software, development steps and content is given in detail in this paper, for your reference)

维纳滤波算法，提高信噪比和可读性，适用于平稳高斯噪声环境(Wiener filtering algorithm to improve the signal-to-noise ratio and readability, applicable to stationary Gaussian noise environment)

clock system clock system

在对一组离散数据点进行拟合时，我们采用最小距离拟合来达到拟合的函数与原数据达到最优拟合(In a group of discrete data points to fit, we use minimum distance fit to achieve the fit function to achieve optimal fit with the original data )

《滑膜变结构控制matlab仿真》第五章( synovial VSC matlab simulation Chapter 5)

本章将涉及比较深层的 MATLAB 内容：脚本；函数（一般函数、内联函数、子函数、 私用函数、方法函数）；程序调试和剖析；数据结构（类、对象）；重载和继承；面向对象 编程。本章配备了许多精心设计的算例。这些算例是完整的，可直接演练的。读者通过这些 算例，将真切感受到抽象概念的内涵、各指令间的协调，将从感知上领悟到面向对象编程的 优越和至关要领。(MATLAB )

产生各种调制信号，例如MASK,MFSK,MPSK,QAM(Produce a variety of modulation signals such MASK, MFSK, MPSK, QAM)