Spreading-code-acquisition-method

matlab Reference Model

在工程应用中 经常会遇到一些复杂的非线性系统, 这些系统状态方程复杂, 难以 用数学方 法准确建模。 在这种情况下, 可以 建立 BP 神 经网 络表达这些 非 线 性系 统。 该方法把未 知 系 统看成是一个黑箱, 首先用 系 统 输入输出 数据 训 练 BP 神 经网 络, 使网 络能 够表达该未 知 函 数, 然后就可以 用训练好的 BP 神经网络预测系统输出 。 本章拟合的非线性函 数为 y = x1^2+x2^2. 。 (In engineering applications often encounter some complex nonlinear systems, which complicated the equation of state, can not be accurately modeled mathematically. In this case, BP neural network can be established to express these nonlinear systems. The method of the unknown system as a black box, the first input and output data with systematic training BP neural network, the network can express the unknown function, then you can use the trained BP neural network forecasting system output. Chapter for fitting non-linear function y = x1 ^ 2+x2 ^ 2..)

在MATLAB仿真的基于放大转发系统（AF）的能量分配，通过对比，分析出EPA方案下，功率要更好一些！(MATLAB simulation amplify and forward (AF)-based energy allocation, by contrast, analysis of the EPA program, the power to be better!)

battery charger program for chrarger development

The state space model is nonlinear and is input to the function along with the current measurement. The function performs the extended Kalman filter update and returns the estimated next state and error covariance

说明：  MATLAB数学实验之数值微分与数值积分，里面有课件以及作业，含程序以及分析过程(MATLAB Mathematical experiments and numerical differential numerical integration, and they courseware and operations, including procedures and analysis process)

粒子群算法的matlab程序，简单实用。直接出图形和结果(PSO algorithm matlab procedures, simple and practical. Direct result of graphics and)

最大似然估计法的matlab实现，及Crammer-lor下界的确定(Maximum likelihood estimation of the matlab implementation, and Crammer-lor to determine the lower bound)

两个关于小球的 matlab 示例 小程序(Two examples of small balls small program matlab)

说明：  庞加莱截面法，用于非线性动力学分析，可运行！(Applications of Poincare map in nonlinear dynamics)