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Chapter6
数值解法
例1 用改进的欧拉方法求一阶方程初值问题的
数值解
例2 数学摆的运动方程与近似方程数值解比较
例3 四阶龙格库塔公式求数值解
Matlab实现求数值解
例1 求初值问题y =x*sin(x)-y,y(0)=0的数值
解.先编辑一个定义方程的ODEF函数文件
ODEfun1.m.
例2 求方程组初值问题的数值解,按指定步长
0.05划分节点.
例3 按指定的精度求高阶方程初值问题的数值解.(Numerical Solution of the law a method of using the improved Euler' s equation of order to a first-order initial value problem of the numerical solution of cases of two mathematical pendulum equations of motion compared with the approximate numerical solutions of equations of three cases of fourth-order Runge-Kutta numerical solution of the formula Matlab order to achieve the numerical solution of demand cases seeking an initial value problem y ' = x* sin (x)-y, y (0) = 0 the numerical solution. first, the definition of an equation editor ODEF function file ODEfun1.m. cases of two demand equations initial value problem of numerical solution, according to the specified division of the node step 0.05. Example 3 according to the specified precision of seeking higher-order equation of the numerical solution of initial value problem.)
- 2010-02-05 23:14:41下载
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HurstEstimator
说明: 分形分析中很重要的Hurst指数的计算程序,并包含Hurst指数等于0.7和0.8的两个样本序列(Fractal Analysis of a very important Hurst index calculation program, and includes Hurst index equal to 0.7 and 0.8 in two samples of sequences)
- 2008-10-21 16:03:35下载
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eva
基于Gumbel极值分析的腐蚀剩余寿命估计过程中,Gumbel分布图的绘制程序。该程序在论文“储罐底板机器人在线检测数据的极值分析”有应用。(Gumbel distribution graph plotting code for corrosion residual life estimation. The program is applied in the paper Extreme Value Analysis of In-Service Robotic Storage Tank Floor Inspection .)
- 2017-04-07 10:40:04下载
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MFP_based_on_High_order_Statistics-master
说明: 浅层海洋环境由信源组成声源,海洋形成信道,和水听器阵列组成接收器。在这个传播模型中,信源,信道和接收信号这三者,通常能知二求一,具体应用诸如利用海洋环境参数和接收到的信号来定位声源,或者通过计算发射信号和接收信号之间的差异,反演海洋环境参数。
而在接收器方面,我们通过设置各向同性的水听器阵列。通过算法和处理器,我们便能量化模型,传统是处理器主要基于接收信号是高斯信号,而海洋中存在着大量的有色噪声。本课题的研究目的便是在前人的基础上,在海洋声层析成像的背景下,在信源与接收器阵列之间,引入信号的高阶统计量,对非高斯过程的水下信号源进行定位,并提高算法的性能和准确性。
利用非高斯过程的高阶累积量不恒为零的特点,滤去高斯有色噪声对信号的影响,其又包含了信号的相位信息,便可以极大的优化匹配场处理过程的性能和准确性。(After receiving signals based on high order cumulant matched field processor after matched field localization, the positioning effect will be more accurate, sidelobe suppression more effectively, and compared with other traditional matched field processor in low SNR environment, it can position more accurately.)
- 2020-10-28 12:29:58下载
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work
等波纹FIR滤波器设计源代码,包含对于滤波器系数量化的部分。(the source code of equiripple FIR filter, including the fixed point analysis)
- 2021-02-14 17:39:48下载
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RS
说明: 本部分根据RS编译码原理,建立了SIMULINK仿真模型,可以对个参数不同设置,分析各参数对RS码性能的影响。(in this part we have build the mode of RS by simulink.we can analyze the impose of any keys to the function)
- 2011-01-01 22:37:20下载
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Positioning-Algorithm
基本定位算法的MATLAB代码,包括LTE定位参考信号及时延估计方法(
The basic localization algorithm MATLAB code, including LTE location estimation method and delay the reference signal)
- 2021-04-22 11:48:48下载
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IC
说明: 智能控制仿真GUI界面,对离散化的受控对象进行不同方式的控制(包括传统PID控制、模糊PID控制、神经PID控制和专家及仿人智能控制),然后通过分析不同条件下的单位阶跃响应指标,比较各控制方式之间的差异及控制特点。(intelligent control GUI)
- 2013-05-27 20:28:50下载
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47651483ffffF1
智能天线来波方向估计算法 music 算法的估计(Smart Antenna DOA estimation algorithm music algorithm estimates)
- 2008-05-21 15:01:50下载
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1_step_MinPh
Matlab code for one step ahead predictive control
- 2012-04-17 21:32:46下载
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