25_8_2011

matlab for control system

PHASE SHIFT KEING MODULATION TECHNIQUE FOR COMMUNICATION

4-9-1的结构ga-lm的bp算法 有示例数值 不是拟合而是预测(4-9-1 structure of ga-lm bp algorithm is not fit but there are examples of numerical prediction)

matlab 人工模拟股市系统 对股票感兴趣的朋友可以下载来玩一玩 我试过了 挺不错的。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。(matlab artificial stock market system)

采用64QAM调制信号的OFDM信号的生成(OFDM with 64QAM modulation signal generated signal)

说明：  SIMULINK的教程，生物群体迭代实例，初学者可以参考，适当有利用价值。。(as readed)

用MATLAB对图像的处理，图像反转和灰度线性变换(Using MATLAB image processing, image inversion and grayscale linear transformation)

说明：  如果对实际工程结构作简化处理，建立其动力学模型，并确定系统的质量、刚度、阻尼参数，便可以用多种方法建立系统的动力微分方程。常用的方法有直接 法、影响系数法、拉格朗日法以及有限元法等。拉格朗日法是从能量的观点建立系统的动能T、势能U和功W之间的标量关系，是研究静、动力学问题的一种方法。如果在选定运动坐标以后，能够设法求得坐标相对应的质量矩阵和刚度矩阵，就可以用影响系数法建立多自由度系统运动微分方程[4]。本文采用拉格朗日法建立了1/4车辆几何模型。(If the actual engineering structure is simplified, its dynamic model is established, and the mass, stiffness and damping parameters of the system are determined, the dynamic differential equation of the system can be established by various methods. The commonly used methods are direct method, influence coefficient method, Lagrange method and finite element method. Lagrange method is a method to study the static and dynamic problems, which is to establish the scalar relation among kinetic energy t, potential energy u and work W from the point of view of energy. If the mass matrix and stiffness matrix corresponding to the coordinates can be obtained after the motion coordinates are selected, the differential equation of motion of the multi degree of freedom system can be established by the influence coefficient method [4]. In this paper, 1 / 4 vehicle geometry model is established by Lagrange method.)

本程序先生成一个“Blocks”信号，然后加上高斯白噪声，再用 db3 小波进行分解， 以说明三种取阈值方法和三种噪声标志对去噪性能的影响。(This procedure Mr. Cheng a " Blocks" signal, and then adding white Gaussian noise, and then ' db3' wavelet decomposition, to illustrate the three kinds of check-threshold method and three kinds of noise, signs of de-noising performance.)

宽带信号测向的几种直接处理算法法，主要用于宽带目标的DOA估计 (Broadband signal measurements to several processing algorithms law, mainly for broadband target DOA estimation)