ceshi12

说明：  对一个二阶模型模型进行脉冲响应辨识，并且通过搭建simulink模型取得了两组输入-输出数据，一组是在有高斯噪声的干扰下获得u1-y3，另外一组是在没有高斯噪声的情况下获得的u1-y1，对这两组数据进行基于haar小波基的脉冲响应辨识，与实际模型的脉冲响应相比较（注：三个excel表必须放在matlab/work文件夹下才能运行）(Second-order model to a model of impulse response identification, and achieved through building simulink model for two groups of input- output data, a Gaussian noise in the interference with access to u1-y3, another group in the absence of Gaussian noise of access to the u1-y1, these two sets of data haar Wavelet-based impulse response identification, and the actual model of the impulse response comparison (Note: Three excel table must be on the matlab/work folder to run ))

牛顿迭代法求无约束一维极值问题的速度相当快，而且还有一个好处就是能高度逼近最优值。(Newton iteration method for one-dimensional unconstrained extremum problem very fast, but there is a benefit that can be highly close to the optimal value.)

一种通过多普勒频移计算海水流速的仿真软件，软件内有详细备注，并能够改变多种参数，完成对不同要素下的仿真建模(A Doppler shift is calculated by seawater flow simulation software, there are detailed notes in the software, and the ability to change a variety of parameters, complete with different elements of simulation modeling)

music 算法码代码，可用于对信号进行频率估计。(music algorithm code code can be used to estimate the frequency of the signal.)

Returns the Multilook Amplitude Ratio for correlated channels(Returns the Amplitude Ratio for Multilook correlated channels)

粒子群优化算法（PSO）是一种基于种群的随机优化技术，由Eberhart和Kennedy于1995年提出。粒子群算法模仿昆虫、兽群、鸟群和鱼群等的群集行为，这些群体按照一种合作的方式寻找食物，群体中的每个成员通过学习它自身的经验和其他成员的经验来不断改变其搜索模式。 (Particle swarm optimization algorithm (PSO) is a population based stochastic optimization technique, put forward by Eberhart and Kennedy in 1995. Particle swarm optimization (pso) algorithm on insects, herds, flocks and schools of fish swarm behavior, and these groups to find food in a cooperative way, each member of the group itself by learning experience and the experience of the other members to continuously change its search pattern.)

时深转换小程序，很实用................(time to depth，useful)

kalman滤波程序，非常适合研究该领域的朋友，欢迎共享(kalman filtering procedures, is very suitable for research in this field, welcome to share the)

分别用改进的Euler方法和四阶Runge-Kutta方法求解。 (Were improved Euler method and fourth-order Runge-Kutta method.)

利用时域数据计算数组的RMS值，利用时域数据计算冲击功率谱密度的试验包络条件。(An array of time-domain data using the RMS value of the time-domain data using the power spectral density of the impact test conditions envelope.)