D2Q9

运用矩阵摄动法求解结构的复模态参数与动力特性等(Application of Matrix Perturbation Method for Solving Complex Modal Parameters and other dynamic characteristics of the structure)

用Matlab程序求解计算物理中使用到的方程，包括：薛定谔方程、傅立叶变换、波函数求解等等(Matlab file is used to describe and solve the equations in the computational physics, including, Schrodinger equation, Fourier transform, wave function solution, etc.)

说明：  ADAM （Adaptive Moment Estimation）是另外一种自适应学习率算法，它结合动量梯度 下降法，在不同参数方向上采用不同学习率，保留前几次迭代的梯度，能够很好 的适应于稀疏数据。(ADAM (Adaptive Moment Estimation) is another adaptive learning rate algorithm, which combines momentum gradient. The descent method, which uses different learning rates in different parameter directions and retains the gradients of previous iterations, is very good. It is suitable for sparse data.)

粒子群算法，也称粒子群优化算法或鸟群觅食算法（Particle Swarm Optimization），缩写为 PSO。它具有精度高，收敛快等优点，广泛用于系统辨识、函数优化等领域。文件pso.m是粒子群算法辨识程序，在此基础上，需要自行编写目标函数计算程序以实现不同系统的参数辨识。(Particle swarm optimization (PSO), also known as particle swarm optimization algorithm or bird swarm foraging algorithm (Particle Swarm Optimization), abbreviated as PSO. It has the advantages of high precision and fast convergence. It is widely used in system identification, function optimization and other fields. The document pso.m is a particle swarm algorithm identification program. On this basis, it is necessary to write an object function calculation program to realize the parameter identification of different systems.)

递归神经网络-实时学习训练算法代码，亲测可用，简洁无误，容易上手。( Recursive neural network- real-time learning training algorithm code, pro-test available, simple and correct, easy to use.)

ARIMA算法的Python实现，预测时间序列数据。 附两个数据： AirPassengers UK Traffic flow(The Python implementation of the ARIMA algorithm predicts the time series data. Two data are attached. AirPassengers UK Traffic flow)

修正剑桥模型在不排水条件下的源程序，很有用，是最近做项目是研究的课题。(cambridge with fortran)

说明：  贝叶斯网络学习算法——k2算法，包括对贝叶斯网络结构的学习，最后生成网络(Bayesian network learning algorithm- k2 algorithms, including Bayesian network structure learning, the last generation network)

说明：  微电网能量平衡的基本任务是指在一定的控制策略下，使微电网中的各分布式电源及储能装置的输出功率满足微电网的负荷需求，保证微电网的安全稳定，实现微电网的经济优化运行。(The basic task of micro grid energy balance is to make the output power of each distributed power source and energy storage device in micro grid meet the load demand of micro grid under certain control strategy, ensure the safety and stability of micro grid, and realize the economic and optimal operation of micro grid.)

程序采用C语言，实现最小二乘辨识算法和递推最小二乘算法(Program using C language, least squares identification algorithm and recursive least squares algorithm)