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[Other resource] TI 54x fft

Description: DSP编程代码,FFT算法,经典!! FFT实验 一、 理论： 公式（1）FFT运算公式 FFT并不是一种新的变换，它是离散傅立叶变换（DFT）的一种快速算法。由于我们在计算DFT时一次复数乘法需用四次实数乘法和二次实数加法；一次复数加法则需二次实数加法。每运算一个X（k）需要4N次复数乘法及2N+2（N-1）=2（2N-1）次实数加法。所以整个DFT运算总共需要4N^2次实数乘法和N*2(2N-1)=2N(2N-1)次实数加法。如此一来，计算时乘法次数和加法次数都是和N^2成正比的，当N很大时，运算量是可观的，因而需要改进对DFT的算法减少运算速度。 根据傅立叶变换的对称性和周期性，我们可以将DFT运算中有些项合并。 我们先设序列长度为N=2^L，L为整数。将N=2^L的序列x(n)(n=0,1,……，N-1)，按N的奇偶分成两组，也就是说我们将一个N点的DFT分解成两个N/2点的DFT，他们又从新组合成一个如下式所表达的N点DFT： 一般来说，输入被假定为连续、合成的。当输入为纯粹的实数的时候，我们就可以利用左右对称的特性更好的计算DFT。 我们称这样的RFFT优化算法是包装算法：首先2N点实数的连续输入称为“进包”。其次N点的FFT被连续被运行。最后作为结果产生的N点的合成输出是
Platform: | Size: 439370 | Author: 徐克 | Hits:

[Other] rfft

Description: 计算实序列傅立叶变换，利用其共轭对称性计算速度快，存储量小。
Platform: | Size: 547 | Author: 张辉 | Hits:

[Other resource] rfft

Description: DSP的实时FFT程序-DSP real-time FFT procedure
Platform: | Size: 75383 | Author: 王高手 | Hits:

[DSP program] rfft

Description: DSP的实时FFT程序-DSP real-time FFT procedure
Platform: | Size: 88064 | Author: 王高手 | Hits:

[ELanguage] C语言实现的SIMPLE语言词法分析器

Description: C语言实现的SIMPLE语言词法分析器，并用JAVA实现界面。-the C language SIMPLE language lexical analyzer and used JAVA interface.
Platform: | Size: 59392 | Author: KOF | Hits:

[Windows Develop] rfft2

Description: 实数序列的fft, 输入的参数为变换的数据和数据长度.变换的结果存放在输入中-actual sequence of fft input parameters to transform the data and data length. Transform the results were stored in the importation
Platform: | Size: 1024 | Author: 小何 | Hits:

[Wavelet] CONV

Description: 卷积&相关的VC程序，依托fft实现快速卷积和相关
Platform: | Size: 4096 | Author: 顾楼 | Hits:

[Other] rfft

Description: 计算实序列傅立叶变换，利用其共轭对称性计算速度快，存储量小。-Fourier transform sequence is calculated using conjugate symmetry of the calculation of its speed, small storage capacity.
Platform: | Size: 1024 | Author: | Hits:

[Algorithm] ForFFT

Description: C++实现的FFT，已调试成功。应该还是比较好用的-C++ Realize the FFT, has been successful debugging. Should be still useful
Platform: | Size: 1046528 | Author: zsc | Hits:

[DSP program] DSP_RFFTTEST

Description: DSP算法 Exercise the rfft function for real FFTs-DSP Algorithm Exercise the rfft function for real FFTs
Platform: | Size: 1024 | Author: vts | Hits:

[assembly language] FFT

Description: 本程序是基于C54x DSP的通用实数FFT程序，适合点数16~1024点或复数点数8~512点，主程序为rfft.asm。-This procedure is based on the C54x DSP real FFT common procedures, for points 16 ~ 1024 points, or plural points 8 ~ 512 points, the main program for rfft.asm
Platform: | Size: 31744 | Author: dazhou | Hits:

[DSP program] rfft

Description: 实数计算fft，按照复数计算，最大计算点数2048点复，算法经过优化-Calculation of real fft, in accordance with the plural, the largest 2048-point complex number calculation, the algorithm is optimized
Platform: | Size: 40960 | Author: 李建立 | Hits:

[Algorithm] RFFT

Description: calculate dft source
Platform: | Size: 3072 | Author: han | Hits:

[Speech/Voice recognition/combine] rfft

Description: 这个函数就是用来进行离散的DFT运算了。它可以指定运算的长度。-This function is used for computing the discrete DFT. It can specify the length of operations.
Platform: | Size: 1024 | Author: bradden | Hits:

[matlab] rfft

Description: fft calculation of any input signal
Platform: | Size: 1024 | Author: Ayush Handa | Hits:

[DSP program] Simulator

Description: Simulator 这是一个仿真程序文件夹下面有： acorr 自相关 add 向量相加 convol 卷积 corr 互相关 dlms 自适应算法 hpassfir 高通FIR算法 lpassfir 低通算法 mmul 矩阵相乘 rfft FFT算法实验 sin 这是一个产生正弦波数据的程 sub 向量相减 -Simulator is a simulation program folder below: acorr autocorrelation vector sum convol add corr correlation dlms convolution algorithm hpassfir adaptive algorithm lpassfir high-pass FIR low-pass algorithm mmul rfft FFT algorithm for matrix multiplication is an experiment which produces sin sine wave data sub vector subtraction process
Platform: | Size: 1075200 | Author: 醚 | Hits:

[DSP program] dspFFT

Description: dsp实验中fft算法的实现，调用库函数通过rfft函数实现-dsp experiment fft algorithm, call the library functions achieve rfft function
Platform: | Size: 29696 | Author: wy | Hits:

[Special Effects] rfft

Description: 计算实序列的快速傅里叶变换，它比复序列FFT算法大约可减少一半的运算量和存储量。-Calculate the real sequence of the fast Fourier transform, which is the time taken by the sequence of the base 2 FFT algorithm, it is more than complex sequence FFT algorithm can be roughly halved the amount of computation and storage.
Platform: | Size: 163840 | Author: 冰河 | Hits:

[DSP program] rfft

Description: 数字信号处理FFT算法rfft.c，简单易懂-Digital signal processing FFT algorithm rfft,Straightforward..
Platform: | Size: 1024 | Author: 陈浩均 | Hits:

[Software Engineering] rfft

Description: the code file that is uploded is rfft file
Platform: | Size: 1024 | Author: iman | Hits:
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