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Description: 利用蝶形算法类似于FFT，利用先行再列实现二维DCT。速度很快。包含反DCT的代码。-similar to the use of butterfly FFT algorithm, the first re-use of 2D DCT out. Very fast. Contain anti- DCT code.
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Size: 2048 |
Author: yaoli |
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Description: 用java编写的用蝶式算法实现的fft，用来计算两个多项式的乘积，输入文件的格式如压缩包中的data5.txt，结果输出到result.txt中。-java prepared with the use of the butterfly fft algorithm, used to calculate the product of two polynomials. input file formats such as compressed data5.txt the results were exported to result.txt.
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Size: 9216 |
Author: 王军 |
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Description: 本文提出一個根值4 蝴蝶元素使用(m, n) - 櫃臺減少硬體複雜, 延遲時間, 和電力消費被介入在使用常規加法器。並且一臺修改過的換向器為FFT 算法被描述與用管道運輸的實施一起為連續輸入資料減少資料記憶要求。-This paper presents a root element of the use of 4 Butterfly (m, n)- the counter to reduce the hardware complexity, latency, and power consumption has been involved in the use of conventional adder. And a modified commutator for the FFT algorithm has been described with the use of pipeline transportation for the implementation of continuous input data together with information to reduce memory requirements.
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Size: 3072 |
Author: 旻倫 |
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Description: FFT算法研究与实现(C语言),1 倒位序算法分析,2 实数蝶形运算算法的推导,3 DIT FFT 算法的基本思想分析-Research and Implementation of FFT algorithm (C language), one inversion algorithm sequence analysis, 2 real butterfly computation algorithm is derived, 3 DIT FFT algorithm the basic idea of analysis
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Size: 3072 |
Author: sxd |
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Description: FFT蝶型算法的C语言实现，在信号处理方面很有用处的！-Butterfly FFT algorithm to achieve the C language, in the signal processing is very useful!
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Size: 2048 |
Author: boody |
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Description: FFT蝶型算法，应用平台TMS320C5416,采用C语言编写-Butterfly FFT algorithm, application platform TMS320C5416, using C language
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Size: 31744 |
Author: kmcm |
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Description: 附件代码实现了基4FFT的碟形单元运算，是FFT算法的核心部分，并且此碟形单元运算是基于浮点运算的-Annex code base of the dish 4FFT computing unit is the core of the FFT algorithm, and this dish is based on the computing unit of the floating-point operations
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Size: 4096 |
Author: 钟毓秀 |
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Description: FFT算法的基本原理是把长序列的DFT逐次分解为较短序列的DFT。按照抽取方式的不同可分为DIT-FFT（按时间抽取）和DIF-FFT（按频率抽取）算法。按照蝶形运算的构成不同可分为基2、基4、基8以及任意因子（2n,n为大于1的整数），基2、基4算法较为常用。-FFT algorithm is the basic principle of DFT successive long sequence is broken down into shorter sequences of DFT. In accordance with the different extraction methods can be divided into the DIT-FFT (time taken) and the DIF-FFT (according to the frequency of extraction) algorithm. In accordance with the composition of different butterfly operations can be divided into base 2, base 4, base 8, as well as arbitrary factor (2n, n is an integer greater than 1), radix-2, Radix-4 algorithm is more commonly used.
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Size: 1024 |
Author: 李文 |
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Description: fft代码,采用蝶形算法,包括C,matlab和verilog代码-fft code, using butterfly algorithm, including C, matlab and Verilog code
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Size: 47104 |
Author: 陈 |
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Description: 基4-FFT蝶形单元实现，按照FPGA内部的乘法器功能编写的-4-FFT butterfly-based unit to achieve, in accordance with the internal FPGA multiplier feature prepared
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Size: 1024 |
Author: 苏菲 |
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Description: 蝶形运算，可用于DCT变换，FFT变换的模块-Butterfly computation, can be used for DCT transform, FFT transform module
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Size: 1024 |
Author: 过时无双 |
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Description: DSP实现蝶形FFT算法 为某开发板公司5509开发板资料-DSP butterfly FFT algorithm to achieve a development board for the 5509 development board company information
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Size: 50176 |
Author: 张队 |
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Description: 基于VHDL语言的一个FFT快速傅里叶变换程序。采用4蝶形算法-VHDL language based on a FFT Fast Fourier Transform procedure. 4 butterfly algorithm used
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Size: 180224 |
Author: 李超 |
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Description: 此程序用Fortran语言编写，对所给数组用蝶形算法进行FFT变换-Fortran language with the program prepared to the array of the butterfly algorithm using FFT transform
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Size: 230400 |
Author: chenjing |
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Description: FFT算法的基本原理是把长序列的DFT逐次分解为较短序列的DFT.按照抽取方式的不同可分为DIT-FFT(按时间抽取)和DIF-FFT(按频率抽取)算法.按照蝶形运算的构成不同可分为基2、基4、基8以及任意因子(2n,n为大于1的整数),基2、基4算法较为常-The FFT algorithm s basic principle is decomposes gradually long sequence DFT into short sequence DFT. different may divide into according to the extraction way DIT-FFT (according to time extraction) and DIF-FFT (according to frequency extraction) the algorithm. Different may divide into the base 2, base 4, bases according to the butterfly-shaped operation s constitution 8 as well as the random factor (2n, n is bigger than 1 integer), the base 2, base 4 algorithms are more common.
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Size: 419840 |
Author: 卡其米奇 |
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Description: 计算离散傅里叶变换的一种快速算法,简称FFT。快速傅里叶变换是1965年由J.W.库利和T.W.图基提出的。采用这种算法能使计算机计算离散傅里叶变换所需要的乘法次数大为减少,特别是被变换的抽样点数N越多,FFT算法计算量的节省就越显著。
-Discrete Fourier transform calculation of a fast algorithm, referred to as FFT. Fast Fourier Transform in 1965 by JW Cooley and TW map out Kormakiti. This algorithm enables calculation of discrete Fourier transform computer required a significant reduction in the number of multiplication, in particular by changing the sampling points N more, FFT algorithm for calculating the amount of savings will be significant.
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Size: 1024 |
Author: 圈石 |
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Description: C语言实现的fft蝶形运算，是个通用程序，移植一下即可使用在其他嵌入式芯片上-C language implementation of the fft butterfly is a common procedure, transplant what can be used in other embedded chip
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Size: 21504 |
Author: liu yang |
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Description: FFT蝶形算法，用OpenGL画图显示出效果。内附GLUT工具包及其安装方法-FFT Butterfly algorithm, using OpenGL drawing to show their effect. Containing a tool kit and installation method of GLUT
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Size: 334848 |
Author: gantian |
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Description: FFT算法vhdl实现 蝶形运算-butterfly fft vhdl
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Size: 368640 |
Author: 倦怠怪兽 |
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Description: fft快速傅里叶变化，c语言程序，蝶形算法-fft Fast Fourier transform, c language program, butterfly algorithm
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Size: 7168 |
Author: wuchenlong |
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