Assignment1a

用黄金分割法来求解函数的极小点，不用求函数的导数，只需进行迭代即可,非精确线搜索技术用于解决极值区间(Golden section method to solve the minimum point of the function, do not seek the derivative of a function, simply iteration can be inexact line search techniques for solving extremal interval)

地球物理勘探中重力资料解释的主要目的是由地表观测值推断地下可能存在的密度分布。众所周知,任何一组重力数据都可能由无数个密度分布所引起。即使假设了重力异常是由具有均匀密度差的单一地质体产生的,也得不出唯一的解(Gravity geophysical exploration data interpretation main purpose is inferred from surface observations may exist underground density distribution. Is known, any set of data may be provided by gravity density caused numerous. Even assuming that the gravity anomaly is determined by having a uniform density difference arising from a single geological body, they have no unique solution)

基于ANSYS APDL二次开发的航电设备的动力学扫频分析，载荷输入条件为交越频率以下为恒定位移，交越频率以上为恒定加速度。我将加速度输入转换为位移输入，将位移和加速度两段输入载荷统一按照位移载荷输入，将位移存入表数组，利用ANSYS APDL自动将扫频范围内的位移载荷存入表数组，并循环加载计算，实现了该工程结构的正弦扫频振动分析。(Kinetic sweep analysis, load input conditions of secondary development based on ANSYS APDL avionics for the crossover frequency less constant displacement, above the crossover frequency is constant acceleration. I will convert the input displacement input acceleration, displacement and acceleration loads unity in accordance with the displacement of the two input load input, the displacement of the array into the table using ANSYS APDL automatically load displacement within the sweep range of the array into the table, and cyclic loading calculated to achieve a swept sine vibration of the project structure.)

convert rgb to hvi colors space

simulink简明教程，分6个章节介绍快速入门、建模方法、运行仿真、基本模块、连续系统、子系统及封装，简单易懂，适合初学者(A simple tutorial simulink, sub-chapter on 6 Quick Start, modeling methodology, operation simulation, the basic module, continuous system, subsystem and package easy, suitable for beginners)

读入一段数据后，计算有效信号的初至、持时及能量等属性，并作出事件属性判断。(Data into a period of time after the initial calculation of the effective signal to hold the time and energy, such as attributes, and attribute the incident to determine.)

this file generate array data for show that particle filter has a better mmse to beamformed data

现代谱估计的程序，对给定的随机信号利用yule-walker方程进行谱估计与其理想功率谱进行谱估计的对比，并比较参数。(Modern spectral estimation procedures, given the use of yule-walker random signal spectrum estimation equation from its ideal power spectrum spectrum estimation contrast and compare the parameters.)

说明：  精通MATLAB优化计算算法，非线性最小二乘问题。共3个程序。(Proficient in MATLAB optimization calculation algorithm, nonlinear least squares problems. A total of three procedures.)

说明：  神经网络遗传算法bp网络，有关网络训练如何正确进行分类(Neural network genetic algorithm bp network, network training related to how to properly classify)