Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Verification of FFT comparision with matlab

Status
Not open for further replies.

achaleus

Member level 5
Member level 5
Joined
Dec 21, 2012
Messages
85
Helped
5
Reputation
10
Reaction score
5
Trophy points
1,288
Location
Bangalore
Visit site
Activity points
1,866
hi all, I completed coding FFT using verilog. I am verifying my output with matlab inbuilt fft operator. As my N (no' of samples are parametrized) for small values of N there no much difference but for N = 512,1024.. some values having difference of +/- 9. I plotted frequency waveforms for my FPGA output and matlab outupt the wave forms are giving fine(preserved frequency).

my question is that my verification is fine and my output is correct or not ( I used cordic algorithm for generation of twiddle factors)
I am attaching matlab output and fpga output please refer

please help,
thanks Capture11.PNGCapture12.png
 

Attachments

  • FFT TEST.doc
    5.2 MB · Views: 145
Last edited:

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top