Jul 25, 2009 #1 P powersys Advanced Member level 1 Joined Nov 29, 2005 Messages 439 Helped 3 Reputation 6 Reaction score 2 Trophy points 1,298 Activity points 4,981 why complex fft Can we perform complex FFT (or complex DFT) using (Stanford Research or Agilent) spectrum analyzer? Is there any spectrum analyzer that able to display the "negative frequencies" and "positive frequencies" of a complex DFT? Thanks.
why complex fft Can we perform complex FFT (or complex DFT) using (Stanford Research or Agilent) spectrum analyzer? Is there any spectrum analyzer that able to display the "negative frequencies" and "positive frequencies" of a complex DFT? Thanks.
Jul 26, 2009 #2 B biff44 Advanced Member level 6 Joined Dec 24, 2004 Messages 5,047 Helped 1,376 Reputation 2,748 Reaction score 1,056 Trophy points 1,393 Location New England, USA Activity points 37,907 complex fft You want to use a "vector signal analyzer". SOME spectrum analyzers, with additional software options, can do this also.
complex fft You want to use a "vector signal analyzer". SOME spectrum analyzers, with additional software options, can do this also.
Jul 26, 2009 #3 P powersys Advanced Member level 1 Joined Nov 29, 2005 Messages 439 Helped 3 Reputation 6 Reaction score 2 Trophy points 1,298 Activity points 4,981 fft analyzer Do you think "Vector Signal Analyzer" (VSA) is able to plot Fig. 2(b) (with negative and positive frequencies) as shown in attached figure? Thanks
fft analyzer Do you think "Vector Signal Analyzer" (VSA) is able to plot Fig. 2(b) (with negative and positive frequencies) as shown in attached figure? Thanks