网站首页

登录

base2fft

于 2008-04-20 发布文件大小:35KB

 0  365

下载积分: 1 下载次数: 12

我要下载

代码说明：

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)

下载说明：请别用迅雷下载，失败请重下，重下不扣分！

发表评论

0 个回复

gplab.3.bugfixes.20090608
您上传的源码为何会被站长不采用或帐号被删除？您上传的源码为何会被站长不采用或帐号被删除？ (Your uploaded source why will be at the station to adopt or accounts removed? Your uploaded source why will be at the station to adopt or accounts removed?)

2011-02-02 15:12:50下载

积分：1
HUDxianshi
模拟战斗机平显画面，实现ccrp投弹方式，速度高度表可动态显示(HUD screen fighter simulation to achieve ccrp bomb mode, speed altimeter dynamic display)

2021-04-09 15:48:59下载

积分：1
raoguosuoyouyonghudecengHOOK
A、分析API函数原理 B、自写API函数 C、SYSENTER指令 D、硬编码_emit E、模拟FindWindow函数 (Analysis of A, API function principle B, write API function C, SYSENTER instruction D, hard coded _emit E, simulating FindWindow function )

2014-01-03 06:25:48下载

积分：1
bayesnetwork
用k2算法从先验概率构建贝叶斯网络，实现推理，结构学习，参数学习用贝叶斯方法。(K2 algorithm using Bayesian network built from the a priori probability to achieve reasoning, structure learning, parameter learning.)

2009-11-12 14:17:04下载

积分：1
TI-RFID-antna
ti关于rf天线的设计、调试方法，13.56M精讲( ti on rf antenna design, debugging method, 13.56M succinctly)

2016-07-01 12:31:01下载

积分：1
disklib
Due to an increase in demand for and questions about direct disk access for Micrososft platforms, and due to the fact that Microsoft has no API for direct disk access, I am releasing this library much earlier than I intended at that start. I am still working on this code. (Due to an increase in demand for and questio ns about direct disk access for Micrososft plat forms, and due to the fact that Microsoft has no API for d Direct disk access, I am releasing this library much earlier than I i ntended at that start. I am still working on this code.)

2006-05-31 01:18:58下载

积分：1
full-search-ME
matlab 对于块全搜索运动估计源代码视频压缩技术h.264(matlab block full search motion estimation for the source code h.264 video compression technology)

2013-12-10 17:29:33下载

积分：1
2
说明：该程序是基于MATLAB的磁悬浮系统连续控制的具体程序实现(The program is based on the specific program MATLAB maglev system to achieve continuous control)

2014-02-18 18:17:40下载

积分：1
Caofa
Cao法求嵌入维数ｍ，相空间重构理论需计算最优嵌入维数ｍ和最佳延迟时间τ, 重构相空间。(Cao method of embedding dimension of phase space m, to calculate the optimal embedding dimension m and the optimal time delay of phase space reconstruction theory.)

2021-04-27 10:48:44下载

积分：1
matrix
在VC中用Matlab引擎计算实对称矩阵特征值和特征向量。.mor0为矩阵输入文件，.mor位结果输出文件。(Calculated using Matlab engine in the VC real symmetric matrix eigenvalues and eigenvectors. . Mor0 matrix input files,. Mor-bit result output file.)

2011-09-27 15:06:37下载

积分：1

696516资源总数
106425会员总数
12今日下载