Near-Field-Beamforming

This is an interface GUI for matlab to make soud in and out from a pc sound card.

关于神经网络的matlab源程序，程序内有详细的注释。(About neural network matlab source program with detailed notes.)

(有源代码)数值分析作业,本文主要包括两个部分,第一部分是常微分方程(ODE)的三个实验题,第二部分是有关的拓展讨论,包括高阶常微分的求解和边值问题的求解(BVP).文中的算法和算例都是基于Matlab计算的.ODE问题从刚性(STIFFNESS)来看分为非刚性的问题和刚性的问题,刚性问题(如大系数的VDP方程)用通常的方法如ODE45来求解,效率会很低,用ODE15S等,则效率会高多了.而通常的非刚性问题,用ODE45来求解会有很好的效果.从阶次来看可以分为高阶微分方程和一阶常微分方程,高阶的微分方程一般可以化为状态空间(STATE SPACE)的低阶微分方程来求解.从微分方程的性态看来,主要是微分方程式一阶导系数大的时候,步长应该选得响应的小些.或者如果问题的性态不是太好估计的话,用较小的步长是比较好的,此外的话Adams多步法在小步长的时候效率比R-K(RUNGE-KUTTA)方法要好些,而精度也高些,但是稳定区间要小些.从初值和边值来看,也是显著的不同的.此外对于非线性常微分方程还有打靶法,胞映射方法等.而对于微分方程稳定性的研究,则诸如相平面图等也是不可缺少的工具.值得提出的是,除了用ode系类函数外,用simulink等等模块图来求解微分方程也是一种非常不错的方法,甚至是更有优势的方法(在应用的角度来说).((Source code) numerical analysis homework, this docment includes two parts, the first is ordinary differential equations (ODE) of the three examples, the second part is about the expansion of the discussion, including the higher-order ordinary differential & boundary value solution Problems (BVP). the text of the algorithm and numerical examples are based on the Matlab. ODE from the rigid (STIFFNESS) look into the issue of non-rigid and rigid problem, rigid problems (such as large coefficient VDP equation) such as using the always method ODE45 used to solve the problems , efficiency will be low, with ODE15S the other hand, many of the high efficiency. and the usual problem of non-rigid, there will be used to solve ODE45 very good results. Judging from the order can be for high-order differential equations and first-order ordinary differential equations, higher-order differential equations can be transformed into a general state space (STATE SPACE) used to solve the low-order different)

此函数是循环平稳过程的相关函数，代码简明，是初学者学习的好资料(This function is the correlation function of stationary process cycle, the code simple, is good information for beginners to learn)

说明：  单神经元PID控制的例子,用于伺服电机的调速(single neuron example PID control for the servo motor speed control)

粒子群参数优化算法子程序，可以实现多个组合参数的优化，采用实数编码。(particle swarm optimization )

将数据调制为wifi传输制式的波形，支持BPSK，QPSK，QAM等调制。配置安捷伦E4438C矢量信号发生器，输出带载波的wifi信号(The data transmission system of the modulation waveform for the wifi support BPSK, QPSK, QAM modulation, etc.. Configure the Agilent E4438C vector signal generator, the output signal with a carrier wifi)

射频信号的去噪，纯净信号为数字调制的AN,FM,BPSK信号，噪声为高斯白噪声。应用SVD分解方法进行去噪。(RF signal denoising, pure signal for the digital modulation of the AN, FM, BPSK signals, noise is Gaussian white noise. Application of SVD decomposition method for denoising.)

复数信号的fastICA算法.希望对大家有所帮助哦(plural signals fastICA algorithm. We hope to help oh )

matlab de diyige PPt