Total-Variation---

分段函数，进行采样，画出采样图，幅频图，频谱图(Piecewise function, sampling draw sample Figure Figure amplitude-frequency spectrogram)

以二体问题为模型，从地球发射航天器探索火星，途中需经过一次无动力金星借力，寻找最优（总速度增量最小）的发射时间窗口和飞行时间，并绘制地球到金星的Pork-Chop发射能量等高线图。发射时间窗口为2023—2033年，总飞行时间不得大于2年。(Taking the two body problem as the model to explore Mars from the earth, it is necessary to seek an unpowered Venus transit force on the way to find the optimal time window and time of flight (the minimum total velocity increment), and draw the contour map of the Pork-Chop emission energy of the earth to Venus. The total launch time window is from 2023 to 2033, and the total flight time is not more than 2 years.)

ASK function, this is a block that has three input and one output. the input are the two carrier that have different amplitute, and the digital signal representing the information or data to be modulated.

读取星历观测文件GPS和北斗卫星的可见卫星数作为输出(read ephemeris observation file to give out GPS and Beidou visible satellite number)

说明：  tdoa 定位算法chan实现，输入三站坐标和左右时差即可解算出目标位置(Chan implementation of TDOA location algorithm)

包括三部分内容均与分水岭算法相关的matlab程序.1，求梯度图；2，区域标记；3，区域合并(include three parts with the watershed algorithm related procedures .1 Matlab, for the gradient map; 2. Regional markers; 3, regional merger)

脑瘫患儿的腿部肌肉电信号与正常小孩的对比(Comparison of leg muscle telecommunication number of cerebral palsy children and normal children)

该源代码是粗糙集属性约简，适用环境为matlab，属于常规属性约简(The source code is rough set attribute reduction, for the environment for matlab, part of the regular attribute reduction)

Matlab四元数工具箱，版本2.4.需要matlab2015b以后的版本。内涵四元数傅里叶变换工具函数，含完全代码和PDF文件说明。(Quaternion Fourier transform toolbox for Matlab, vesion 2.4. It contains the complete code and PDF file description.)

说明：  BP神经网络的一种回归算法研究，MATLAB实现并已通过系统仿真测试(A return of BP neural network algorithm, MATLAB simulation to achieve and have passed the test)