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Hi
I need an optimized double precision ( fixed point Q31 format ) 1024 point real FFT routine for the TMS320C54x DSP family. The DSPLIB from Texas only contains single precision ( Q15 format ) FFTs. Best regards Torgeir Jakobsen e-mail: t...@aanderaa.no www.egroups.com - Simplifying group communications |
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Real FFT for C54x
Started by ●July 9, 1999
Reply by ●August 25, 19991999-08-25
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Hi I found a document from Texas describing how to do a real FFT by using a complex FFT. The document "Implementing Fast Fourier Transform Algorithms of Real-Valued Sequences with the TMS320 Family" descirebes how to do it (SPRA291). Instead of using the single precision FFT described in this document, I use the Double-Precision Complex FFT described in SPRA554A. This way you can use a N/2 point complex FFT to transform a N point real sequence. Best regards Torgeir Jakobsen e-mail: wrote: original article:http://www.egroups.com/group/c54x/?start > Hi > > I need an optimized double precision ( fixed point Q31 format ) 1024 point > real > FFT routine for the TMS320C54x DSP family. The DSPLIB from Texas only > contains single precision ( Q15 format ) FFTs. > > Best regards > Torgeir Jakobsen > e-mail: > |
