完美的基于相似性的社区发现代码

对某型垂直起降飞机在推力有界限制条件下进行三种情况下的仿真研究(Global stabilizing control design is proposed for the planar vertical takeoff and landing (PVTOL) aircraft. The methodology is based on the use of nonlinear combinations of saturation functions bounding the thrust input to arbitrary saturation limits.)

Numerical analysis tools in Matlab.

这个程序可以模拟脉冲体制雷达的动、静目标回波，并进行距离压缩，MTI，MTD(This program can simulate pulse radar system dynamic and static target echo, and range compression, MTI, MTD)

说明：  1）网络结构为三层，隐层神经元个数自定，说明神经网络结构； 2）获取两组数据，一组作为训练集，一组作为测试集； 3）用训练集训练网络； 4）用测试集检验训练结果，并显示拟合结果。(1) The network structure has three layers, and the number of neurons in hidden layer is self-determined, which indicates the structure of neural network; 2) Two sets of data were obtained, one as training set and one as test set; 3) The network is trained by training set; 4) The test set was used to test the training results, and the fitting results were displayed.)

d. 设计 FIR 数字带通滤波器，技术指标为： 下阻带边缘： ωst1=0.2π， δs1=60dB，下通带边缘： ωp1=0.4π， δp1=1dB； 上通带边缘： ωp2=0.6π， δp1=1dB，上阻带边缘： ωst2=0.8π， δs2=60dB； (1) 通过技术指标，选择一种窗函数进行设计； (2) 求滤波器的单位抽样响应、频率响应，并绘制波形

matlab 牛顿法迭代,为数值分析课上的作业,用借鉴于其他的迭代计算中.()

　蔡勒（Zeller）公式：是一个计算星期的公式。 　　随便给一个日期，就能用这个公式推算出是星期几。(Zeller (Zeller) formula: It is a formula for calculating week. Casual to a date, can be calculated using this formula out of the week.)

三个遗传算法matlab程序实例，比较实用，希望大家用得到(Three genetic algorithm matlab examples, practical, hope everyone to use )

一种新的瞬时频率估计方法，用到了同步压缩短时傅里叶变换的高阶形式(This MATLAB package is a collection of scripts allowing to generate figures in the paper [1]. This paper puts forward a generalization of the short-time Fourier-based Synchrosqueezing Transform using a new local estimate of instantaneous frequency. Such a technique enables not only to achieve a highly concentrated time-frequency representation for a wide variety of AM-FM multicomponent signals but also to reconstruct their modes with a high accuracy.)