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Discussion Groups | TMS320C54x | Interpretation of FFT results
Technical discussions about the TI C54x DSPs (including the c5401, c5402, c5402a, c5404, c5407, c5409, c5409a, c5410, c5410a, c5416, c5420, c5421, c5441, c549, c5470 and c5471).
Interpretation of FFT results - Santosh M Nadig - Jul 13 4:33:00 2001
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Hello, Has anyone used the DSP library provided by TI for performing N-point real FFT. It says that when the input is in bit-reversed order, the output of rfft() function gives the results as follows.... Re(y(0)) Im(y(Nyquist)) Re(y(1)) Im(y(1)) and so on........but I was not able to find it. Regards, Santosh *************** Santosh M Nadig Systems Engineer Accord Software & Systems Pvt Ltd. Bangalore, India Ph: +91-80-5350105 *************** |
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Re: Interpretation of FFT results - Atanu Guchhait - Jul 19 6:04:00 2001
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Hi, the dsplib functions will come with ccs. Go to the directory \ti\c5400\cgtools\dsplib\54x_src. There all functions those are listed in dsplib application manual will be available. Regards atanu -------------------------------------------------------- Atanu Guchhait Research Engineer Center for Development of Telematics, Govt. of India GSM DSP Group Bangalore - 52 India, Ph: 91-080.2263399-245 -------------------------------------------------------- ----- Original Message ----- From: Santosh M Nadig <> To: <> Sent: Friday, July 13, 2001 10:03 AM Subject: [c54x] Interpretation of FFT results > Hello, > Has anyone used the DSP library provided by TI for performing > N-point real FFT. It says that when the input is in bit-reversed order, > the output of rfft() function gives the results as follows.... > Re(y(0)) Im(y(Nyquist)) > Re(y(1)) Im(y(1)) and so on........but I was not able to find it. > > Regards, > Santosh > *************** > Santosh M Nadig > Systems Engineer > Accord Software & Systems Pvt Ltd. > Bangalore, India > Ph: +91-80-5350105 > *************** > _____________________________________ |
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