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jj's useful and ugly FFT page

Jan 1, 2012 . C++ source (template) for complex FFT you can supply a class complex (e.g. based on fixed point floats) with the operators =,+,-,* and this code .

http://www.jjj.de/fft/fftpage.html

Develop FFT apps on low-power MCUs

Oct 19, 2005 . The microcontroller then performs a 256-point FFT on the samples to obtain the . Fixed-point arithmetic is therefore required for all computations. . Any loop in the source code that samples an ADC and includes a decision .

http://www.eetimes.com/design/embedded/4025598/Develop-FFT-apps-on-low-power-MCUs

Rounding and Scaling in Fixed-Point FFT Implementations

The calculation of the discrete Fourier transform using a. fast Fourier transform ( FFT) algo- rithm with ?xed-point arithmetic is considered. The input data is scaled .

http://www-mmsp.ece.mcgill.ca/Documents/Reports/1985/KabalR1985.pdf

512/1024 POINT FFT IP core

The FFT1024 core implements 1024 or 512 point FFT in .

http://www.ipcores.com/fft_1024_core.htm

32/64/128/256/512/1024/2048/4096 Point FFT Core

Test bench with fixed-point Matlab and optional C++ models. Available in . Supports flushing and re-starting of the FFT operation instantly. Configurable bit .

http://www.ipcores.com/FFT4096.htm

Specifying Power Consumption

6.1 Scalar FFT Function Source Code . . . . . . . . . . . .13. 6.2 Vector FFT . Fixed- point FFT implementations such as these have the following advantages over .

http://cache.freescale.com/files/32bit/doc/app_note/AN2114.pdf

Fixed-Point Toolbox - Demos

To use the FFT block to compute a fixed-point FFT, you must have licenses for Simulink®, Simulink® . The source files for the C-MEX function are as follows: .

http://www.mathworks.com/products/fixed/demos.html?file=/products/demos/fixedpt/radix2fft/fi_radix2fft_demo.html

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FFT/IFFT cores for OFDM systems

At the OFDM receiver, demodulation is performed using the FFT. . Synthesizable VHDL RTL source code; Fixed-point Matlab model; Simulation scripts; Test- .

http://www.ceit.es/index.php?option=com_content&view=article&id=517&Itemid=331

Color Organ / Spectrum Analyzer using fixed point FFT.

Color Organ / Spectrum Analyzer using fixed point FFT. . This is why I put 3 of them in each string, and have to use ULN2003 with 12V power source. . I was not able to post code on this page as it above the limits (15000), plz. check on : .

http://arduino.cc/forum/index.php?topic=51828.0

README

Files cwplib.tgz C source for Prime Factor Algorithm(PFA) FFT, convolution, . on fixed point floats) with the operators =,+,-,* and this code gives you a FFT for it.

http://www.cs.sunysb.edu/~algorith/implement/FFT/distrib/README

FFT Audio Spectrum Analyser PIC32 QVGA LCD - YouTube

Oct 31, 2011 . PIC32 (Arduino-like) C++ source code : http://www.chipkit.org/forum/viewtopic. php?f=15&t=512&p=2633 fix_fft.c fixed point arthmetic function .

http://www.youtube.com/watch?v=yoquqEL8OCc

Extended Precision Radix-4 Fast Fourier Transform Implemented on ...

dpfft.asm – C6x assembly source code for a C-callable, double precision. ; fixed- point, radix-4, in-place, complex FFT assembly language function.

http://www.ti.com/general/docs/lit/getliterature.tsp?literatureNumber=spra297&fileType=pdf

Bench Test of a Satellite Signal Processing Algorithm Based on a ...

convert the MATLAB algorithm to C code which can be built into executable machine code. . Therefore, by using an open-source fixed point FFT C code ( See .

http://publications.lib.chalmers.se/records/fulltext/153293.pdf

fixed point goertzel datasheet and application note, data sheet ...

Fulltext Datasheet Results, 1 - 13 of about 13 for fixed point.. ID 1, First line: GOERTZEL ALGORITHM SOURCE CODE c80 Master Processor architectureÂ .

http://www.datasheetarchive.com/fixed%20point%20goertzel-datasheet.html

Parallel Implementation of Fixed-Point FFTs on TigerSHARC ...

Feb 3, 2005 . a. Parallel Implementation of Fixed-Point FFTs on TigerSHARC® Processors (EE -263). Page 10 of 12. Appendix. Complete Source Code of the .

http://www.analog.com/static/imported-files/application_notes/EE-263.pdf

Data sheet for FFT Core

Fast Fourier Transform (FFT) is an efficient algorithm to . Uses Fixed point implementation. Deliverables: . source code documentation. Block Diagram: .

http://www.softjin.com/IP_Datasheet_PDF_version/FFT_datasheet.pdf

Final Project: FFT Component

Final Version of 32-point Parallel FFT . The following links point to all the source code materials corresponding to the FFT in its final state. . Fixed point FFT simulation model (MDL); Module Compiler code (MCL); VHDL test bench (VHDL) .

http://bwrc.eecs.berkeley.edu/people/kcamera/EE225C/final.htm

SourceForge.net: Kiss FFT: Fixed point FFT

Sep 6, 2011 . iam using 4096 point fftr (real fft) fixed point int_32(Q31). my problem is upto 600mv i . I am using Kiss_FFt if anything i want to modify in code.

http://sourceforge.net/projects/kissfft/forums/forum/278333/topic/4694784

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passworld.co.jp • View topic - FFT source code generator for MSP430

FFT is not difficult to write, but when it comes to the 10th time, . Generate the full source code (fft.h and fft.c). . 16-bit fixed point works now.

http://passworld.co.jp/ForumMSP430/viewtopic.php?f=1&t=148

RADIX-4 FFT (integer math). « coolarduino

Mar 24, 2012 . Having “tweaking” experience with fix_fft source code from: . and than combine all parts back as fixed point or integer math components.

http://coolarduino.wordpress.com/2012/03/24/radix-4-fft-integer-math/

Arduino Forum - Modified 8bit FFT in c

fix_fft.h. Code: #ifndef FIXFFT_H #define FIXFFT_H #include <WProgram.h> . áClearly, this cannot be done within fixed-point short áintegers. . I'll tell you how: by putting the source code out, it allows me to BACKTRACK to .

http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1286718155

A LOW-POWER, FIXED-POINT, FRONT-END FEATURE ...

changes in the algorithmic implementation of the source code to run faster and . The optimized source code runs 34 times faster than the . Fixed-point FFTs .

http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.15.2100&rep=rep1&type=pdf

FC200 :: Fixed Point FFT Processor; IP core

Fixed Point FFT Processor Core for FPGA. . This product can be offered in both source and compiled version depending on the requirements. Features . The code is in RTL format and no primitives from Xilinx or any other vendor are needed.

http://www.sundance.com/prod_info.php?board=FC200

STR91x DSP library (DSPLIB)

This manual presents a library of ARM assembly source code modules for digital . floating-point and fixed-point C function, and amplitude, for a 16-point FFT.

http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/USER_MANUAL/CD00144074.pdf

MS1030

The MS1030 is a Fast Fourier Transform (FFT) IP core, which computes the forward . Quantization Bit Rate X12Q8 format of 12-bit fixed point number for both of Input . Synthesizable Verilog RTL source code (Logic Synthesis is confirmed as .

http://www.mathematec.com/english/ms1030.html

DAC Presentation kit

DSP Software Development; DSP Simulator; Introduction to Intrinsics; FFT Example . Simultaneously. Develop Fixed. Point Simulation. and Assembly. Code . Run the same C/C++ source code in Matlab and in the DSP; Easily migrate .

http://videos.dac.com/42nd/slides/36-2.ppt

KISS FFT - A mixed-radix Fast Fourier Transform based up on the ...

SourceFiles.org - Use the Source, Luke . I started coding this because I couldn't find a fixed point FFT that didn't use assembly code. I started with floating point .

http://www.sourcefiles.org/Scientific/Other_Sciences/madagascar-0.9.3.tar.bz2.shtml

Compact 64 point FFT IP core

The FFT0064 core implements 64 point FFT in hardware. FFT 64 . Parameterized bit widths and fixed point option. . Synthesizable Verilog RTL source code .

http://www.ipcores.com/fft_64_core.htm

How to build ultra-fast floating-point FFTs in FPGAs

Apr 30, 2007 . Here's how to build a hybrid fixed/float FFT that achieves gigasample-per-second performance and can scale from 32 to 2048 points.

http://www.eetimes.com/design/signal-processing-dsp/4017476/How-to-build-ultra-fast-floating-point-FFTs-in-FPGAs

FFT Implementation on the TMS320VC5505, TMS320C5505, and ...

Project collateral and source code discussed in this application report can be . FFT computation with fixed-point numbers is vulnerable to overflow, underflow, .

http://www.ti.com/general/docs/lit/getliterature.tsp?literatureNumber=sprabb6a&fileType=pdf

FFT Implementation on the TMS320VC5505, TMS320C5505, and ...

Project collateral and source code discussed in this application report can be . FFT computation with fixed-point numbers is vulnerable to overflow, underflow, .

http://www.ti.com/general/docs/lit/getliterature.tsp?literatureNumber=sprabb6a&fileType=pdf

verilog for 8 point fft datasheet and application note, data sheet ...

—provided as VHDL/Verilog source code. Two fixed-point, complex FFT modules for the XC4000X XC4000X .. a 16- point, 16-bit 16-bit complex FFT.

http://www.datasheetarchive.com/verilog%20for%208%20point%20fft-datasheet.html

neuroelec » FFT Library for Arduino

Mar 23, 2011 . I tried some FFT code for Arduino and found fixed point FFT from . Code : http:// code.google.com/p/neuroelec/source/browse/#svn%2Ftrunk% .

http://neuroelec.com/2011/03/fft-library-for-arduino/

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Kiss FFT | Free Audio & Video software downloads at SourceForge.net

Jun 19, 2011 . Kiss FFT is a very small, reasonably efficient, mixed radix FFT library … . Browse All Files . Kiss FFT is a very small, reasonably efficient, mixed radix FFT library that can use either fixed or floating point data types. Kiss FFT .

http://sourceforge.net/projects/kissfft/

Re: FFT on NEON

Jul 7, 2009 . In a dumb way, basic radix2 butterfly in floating point could look like this: . I modified the library developed by Gregory Heckler, the source code is . It works, but my 256 points fixed point 16 bit FFT still >>>> takes about 60us.

http://www.mail-archive.com/beagle-sdr@opensdr.com/msg00121.html