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base2fft
根据DFT的基二分解方法,可以发现在第L(L表示从左到右的运算级数,L=1,2,3…M)级中,每个蝶形的两个输入数据相距B=2^(L-1)个点,同一旋转因子对应着间隔为2^L点的2^(M-L)个蝶形。从输入端开始,逐级进行,共进行M级运算。在进行L级运算时,依次求出个2^(L-1)不同的旋转因子,每求出一个旋转因子,就计算完它对应的所有的2^(M-L)个蝶形。因此我们可以用三重循环程序实现FFT变换。同一级中,每个蝶形的两个输入数据只对本蝶形有用,而且每个蝶形的输入、输出数据节点又同在一条水平线上,所以输出数据可以立即存入原输入数据所占用的存储单元。这种方法可称为原址计算,可节省大量的存储单元。附件包含算法流程图和源程序。(err)
- 2008-04-20 23:11:05下载
- 积分:1
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EM算法for cluster
说明: 一个大家都在寻找的em算法,matlab实现(one we are looking for the em algorithm, achieving Matlab)
- 2005-11-22 21:55:22下载
- 积分:1
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matcom_functions
MATCOM提供了MATLAB到C++的编程接口,本文是MATCOM4.5的说明文档,详细介绍了MATCOM的各个函数和操作符等。(MATCOM MATLAB to C++ provides a programming interface, this article is MATCOM4.5 documentation, detailing MATCOM various functions and operators and so on.)
- 2014-08-18 10:39:13下载
- 积分:1
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H2_1sin
it s backpropagation neural network for iris data set
- 2014-01-24 15:28:07下载
- 积分:1
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_扩频通信系统实用仿真技术码
说明: 扩频通信中的两大常见扩频方式,直接序列扩频和跳频(Direct sequence spread spectrum and frequency hopping are two common spread spectrum methods in spread spectrum communication)
- 2021-03-17 20:33:56下载
- 积分:1
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montec3dae
simulation Monte Carlo 3d
- 2011-01-08 19:03:15下载
- 积分:1
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SAR_image_algorithm
合成孔径雷达仿真源代码,包括chirp信号、回波仿真、脉冲压缩、距离徙动、距离多普勒算法等五个源代码,是学习SAR仿真很系统的资料。(Synthetic aperture radar simulation source code, including the chirp signal echo simulation, pulse compression, range migration from Doppler algorithm source code, learning SAR simulation system.)
- 2012-10-08 20:30:14下载
- 积分:1
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sg2datainput
此为MATLAB的m文件,用于地震数据中sg2文件数据的读入。(This is the m file of MATLAB, which is used to read SG2 file data in seismic data.)
- 2018-04-08 09:38:16下载
- 积分:1
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EMD
一种新型自适应信号时频处理方法,特别适用于非线性非平稳信号的分析处理。(A new adaptive signal time-frequency processing method is proposed, which is especially suitable for the analysis and processing of non-linear and non-stationary signals.)
- 2020-06-20 02:40:01下载
- 积分:1
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4.rar
matlab神经网络工具箱的应用·················(matlab neural network toolbox of the application of)
- 2010-02-07 14:04:30下载
- 积分:1