HFD

赛车路线分析，解决这个问题时，我们主要是利用多次插值来求得曲线上的点，利用这些点来拟合比赛车道的曲线和选手的速度曲线，画出图像。用M语言并且用坐标平面上的点之间的距离计算公式计算周长L，用梯形法求所围区域的面积。最后根据速度图像来判断路况。(Racing line analysis)

现需要在高度为600~700KM范围内，回归周期为30天的太阳同步轨道上布置一颗L波段的合成孔径雷达卫星。 1. 请设计合适的轨道参数，并仿真对应轨道下一个运行周期内星下点轨迹图（纬度和经度两个图）； 2. 计算多普勒中心频率，多普勒调频率与纬度的关系图（设姿态角为0°，天线视角20°~60°，推荐35°）； 3. 按高斯投影方式，将星下点轨迹图投影到地图坐标上。(Now requires a height of 600 ~ 700KM range, return period of 30 days are arranged on a sun-synchronous orbit L-band Synthetic Aperture Radar satellites. 1 Please design the appropriate orbital parameters and simulate the corresponding orbit within the next operating cycle nadir trajectories (latitude and longitude two graphs) 2. Calculate the Doppler center frequency, Doppler frequency and the relationship between latitude Figure (set attitude angle is 0, the antenna angle of 20 to 60, recommended 35) 3 Press Gauss projection, the nadir trajectories projected onto the map coordinates.)

粒子群算法是一种新的模仿鸟类群体行为的智能优化算法，描述了基本粒子群算法和改进粒子群算法的原理。(Particle swarm optimization (pso) algorithm is a kind of new imitate birds swarm behavior of intelligent optimization algorithm, describes the basic principle of particle swarm optimization (pso) algorithm and improved particle swarm algorithm .)

代码运用BP网络作为解决方案，主要对给定的数据进行仿真和预测(Code using BP network as a solution, the main simulation and projections for the given data )

数值分析中 二分法查找带GUI图形界面的源码(Numerical analysis of binary searching with the source code of the GUI graphical interface)

关于matlab的插值范例，简单描述了各种插值的效果对比(interpolation )

This is matlab code for simulation pdf of Nakagami

FastICA求解独立分量分析的盲源分离问题(FastICA solution for blind source separation)

说明：  微弱信号的提取检测和分析 用matlab实现的源代码 首先计算输入信号的均值、均方值、方差、频谱及功率谱密度，确定输入信号中包含着有用信号。然后提取有用信号，并要求计算提取信号的均值、均方值、方差、概率密度、频谱及功率谱密度，并画出曲线(The extraction of weak signal detection and analysis)

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