EXERCISE_3_2

求解声学问题的边界元程序，给声学研究的人员很大启发(Solving the problem of acoustic boundary element program, to inspire great acoustic research staff)

数值分析里面的：不动点迭代法、牛顿迭代法、共轭梯度法和最速下降法(Conjugate Gradient)

采用QR分解方法计算矩阵特征值和特征向量(computes a partial Schur decomposition of a square matrix or operator)

这是一个基于模拟退火算法的混沌神经网络模型(This is an algorithm based on simulated annealing chaotic neural network model)

说明：  Galileo单频定位程序，能基于rinex文件实现高精度定位，供编写时参考(Galileo single-frequency positioning program can achieve high-precision positioning based on RINEX file for reference when writing.)

卡尔曼滤波程序用于时间序列预测，结构简单程序易懂(kalman filter for prediction)

粒子滤波PF，无迹粒子滤波UPF，卡尔曼滤波KF，扩展卡尔曼滤波EKF等例程与比较。建议下载，清晰明了(Particle filter PF, Untraced particle filter UPF, Kalman filter KF, extended Kalman filter EKF and other routines and comparisons.)

利用ansys的命令流apdl对复合材料储氢瓶进行仿真设计，碳纤维铺层及其加载，最后分析其应力应变。(The composite hydrogen storage bottle was simulated and designed by using the command flow APDL of ANSYS, and the stress and strain of the carbon fiber layer were analyzed.)

三次样条曲线拟合代码，先训练，后差值，计算非常准确(Three times spline curve fitting, the first training, and after, computation is very accurate)

采用相互垂直的两个振子构成圆极化天线的FDTD程序．可以计算其圆极化波瓣宽度等天线指标 (perpendicular to each other using the two oscillator constitute a circularly polarized antenna FDTD procedures. Can calculate its lobed circular polarization antennas width indicators)