chazhi

这是一个对时间序列进行短时傅立叶变换的源程序,测试过,好用的.(This is a program for STFT,which had tested.)

PoleyFitqw曲3线3拟w合类q库 PolewyFitqw曲w线拟w合t类库 PoelywFitq曲w线拟t合类t库 PoelyFtitq曲er线rw合类t库 PolywrFitq曲q线拟wt合t类库(Pwoly33FiwtPoleetPwolyFit555PolywFit)

该程序用fortran90编写，时域有限差分（FDTD)中的近远场变换方法。解决了电磁波后向散射中的RCS计算(FORTRAN90 prepared with the program, finite difference time domain (FDTD) in the near field to far field transformation method. Resolved backscattering of electromagnetic waves in the RCS calculation)

基于GWBASIC实现的无约束寻优算法，内附GWBASIC主程序和说明(Non-binding on GWBASIC achieve optimization algorithm, the main program and instructions included GWBASIC)

两种涡旋光束的线性强度、强度密度和三维立体图，改变拓扑荷可以改变强度分布。(two kinds of vortex beam)

结合粒子群优化算法和和声搜索算法的优点，有效将群智能思想和随机全局搜索相融合，在几个函数优化问题中得到了验证 (Combining particle swarm optimization algorithm and harmony search algorithm advantage, effective will swarm intelligence thought and random global search phase fusion, in several function optimization problem has been proved )

简单的平面有限元程序，采用三结点三角形单元；采用等带宽存贮技术；采用高斯消元法解线性方程组。(Simple plane finite element program, using three node triangular element use of such bandwidth, storage technology using Gauss elimination method to solve linear equations.)

详细画出了时域和频域的相关图，实现了图像的灰度化并进一步用于视频监视控，小波包分析提取振动信号中的特征频率。( Correlation diagram shown in detail the time domain and frequency domain, Achieve a grayscale image and further control for video surveillance, Wavelet packet analysis to extract vibration signal characteristic frequency.)

说明：  基于M估计的迭代最小二乘算法，其中估计量有Huber,Andrews,Hampel,Ramsay等。(M is estimated based on the iterative least-squares algorithm, which estimates there are Huber, Andrews, Hampel, Ramsay and so on.)

盒维数计算和豪斯多夫维数的计算与应用研究程序(box counting)