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FDTD-WireAtenna3
- 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
high-resolution-one-dimension
- 高分辨率要求系统具有大的带宽,瞬时带宽的增加必将提高系统对硬件的要求,本文采用方便灵活的步进频率波形信号。脉间频率步进波形通过子脉冲载频的步进变化来获得大的有效带宽,使成像具有高分辨率,采用加窗和补零方法提高信噪比,但该信号对目标径向速度非常敏感。采用补零方法提高距离取样分辨率,使距离像细化,并用公式说明了补零只能提高距离取样分辨率,并不能改变频率步进信号的距离分辨能力。该信号波形对目标径向速度的敏感,使目标能量分散到邻近的距离单元造成距离分辨率下降,如果不事先进行速度补偿,直接对回波信号进行逆
wavelet
- 地震子波的原代码,用于合成地震子波,是基本的函数编写的,fortran编写
ricker
- 地震中的雷克子波,可以根据需要进一步开发!-Lake of the seismic wavelet, based on the need for further development!
solitons2
- 对孤立波的孤子解,用到了分部傅里叶算法,在非线性微分方程的算例有帮助-Pairs of solitary wave soliton solutions of the Division Fourier algorithm is used in cases of non-linear differential equation operator help
Wiener
- 本程序实现了基于最佳维纳滤波器的盲解卷积算法。维纳滤波将地震子波转换为任意所需要的形态。例如,像反滤波一样,可以设计维纳滤波器将地震子波转换为尖脉冲。但维纳滤波不同于反滤波,它是在最小平方的意义上为最 佳。基于最佳纳滤波理论的滤波器算法是人们熟知的维纳一莱文逊(Wiener—Levinson)算法。本程序提供了五种期望输出:零延迟尖脉冲;任一延迟尖脉冲;时间提前了的输入序列;零相位子波;任意期望波形。-Wiener—Levinson algorithm used in wiener filt
fft
- 地震数据快速傅里叶变换,地震子波频谱分析-Seismic data fast Fourier transform, the spectrum of the seismic wavelet analysis
decon.cpp
- 维纳滤波方式的子波反褶积,包含自相关运算、矩阵转换-Wiener filtering method wavelet deconvolution
zheji
- 利用反褶进行的褶积运算合成地震记录。子波使用雷克子波,长度为Nw,Nt为反射系数长度,Nx为道数。提供四个地下模型:水平界面,两层水平界面,绕射界面和倾斜界面。输出二进制文件。-Use convolution operation performed deconvolution synthetic seismogram. Ricker wavelets using wave length Nw, Nt is the reflection coefficient length, Nx is the
poufui
- 用平面波展开法计算二维声子晶体带隙,cordic算法的matlab仿真,关于小波的matlab复合分析。- Computation Method D phononic bandgap plane wave, cordic matlab simulation algorithm, Matlab wavelet analysis on complex.
gansao
- 小波包分析提取振动信号中的特征频率,含噪脉冲信号进行相关检测,二维声子晶体FDTD方法计算禁带宽度的例子。- Wavelet packet analysis to extract vibration signal characteristic frequency, Noisy pulse correlation detection signal, Dimensional phononic crystals FDTD method calculation examples band gap.
jaopei
- 用平面波展开法计算二维声子晶体带隙,matlab小波分析程序,用于信号特征提取、信号消噪。- Computation Method D phononic bandgap plane wave, matlab wavelet analysis program, For feature extraction, signal de-noising.
yiuning
- 可以得到很精确的幅值、频率、相位估计,一个计算声子晶体结构的一维传递矩阵法,matlab小波分析程序。- You can get a very accurate amplitude, frequency, phase estimation, A one-dimensional transfer matrix method to calculate the phonon crystal structure, matlab wavelet analysis program.
yaiting
- 计算目标和海洋回波的功率谱密度,分数阶傅里叶变换计算方面,粒子图像分割及匹配均为自行编制的子例程。- Calculating a target and ocean echo power spectral density, Fractional Fourier transform computing, Particle image segmentation and matching subroutines themselves are prepared.
kingqen_v42
- 用平面波展开法计算二维声子晶体带隙,基于小波变换的数字水印算法matlab代码,线性调频脉冲压缩的Matlab程序。- Computation Method D phononic bandgap plane wave, Based on wavelet transform digital watermarking algorithm matlab code, LFM pulse compression of the Matlab program.
nenfai
- 二维声子晶体FDTD方法计算禁带宽度的例子,包含特征值与特征向量的提取、训练样本以及最后的识别,matlab小波分析程序。- Dimensional phononic crystals FDTD method calculation examples band gap, Contains the eigenvalue and eigenvector extraction, the training sample, and the final recognition, matlab wavelet
qanben
- 二维声子晶体FDTD方法计算禁带宽度的例子,matlab小波分析程序,数据模型归一化,模态振动。- Dimensional phononic crystals FDTD method calculation examples band gap, matlab wavelet analysis program, Normalized data model, modal vibration.
puisang
- 粒子图像分割及匹配均为自行编制的子例程,电力系统暂态稳定程序,可以进行暂态稳定计算,matlab小波分析程序。- Particle image segmentation and matching subroutines themselves are prepared, Power System Transient Stability Program, can be transient stability, matlab wavelet analysis program.
doa_signal
- 低信噪比条件下的高分辨DOA估计算法,提出一种基于多级维纳滤波器(MSWF)的信号波达方向(DOA)估计算法。通过测试信号子空间的估计值与噪声子空间的正交性实 现 DOA粗估计,通过测试MSWF 分解的互相关函数实现信号 DOA 的精估计。仿真实验表明,在低信噪比条件下,该算法比已有的子空 间类算法有更好的分辨率和误差性能。-Put forward a kind of multistage Wiener filter (MSWF) based on the signal directio
ueakh
- 分数阶傅里叶变换计算方面,二维声子晶体FDTD方法计算禁带宽度的例子,计算目标和海洋回波的功率谱密度。- Fractional Fourier transform computing, Dimensional phononic crystals FDTD method calculation examples band gap, Calculating a target and ocean echo power spectral density.