Hi, Nimish, Does this occur in simulation as well?
Dave On Mar 15, 2013, at 12:14 PM, Nimish Sane wrote: > Hi all: > > I am attaching a plot for Power of two inputs vs frequency channels. As can > be seen, we have this persistent problem where some channels at the end just > do not make any sense. We suspect that there is something going wrong in the > FFT block. Has anybody seen such behavior before or can think of what may be > going wrong? > > Following are some specifications that may be useful: > Hardware: ROACH2 with KATADC. > ADC Clock: 800 MHz, > FPGA clock: 200 MHz > Toolflow: XSG 11.5 with Matlab 2009b with RHEL5.8 > Libraries: SKA > FFT green block: fft_wideband_real > FFT size: 2^13 (4096 Output channels) > > Thanks, > > Nimish > -- > Nimish Sane > > Center for Solar-Terrestrial Research > New Jersey Institute of Technology > University Heights > Newark, NJ 07102-1982 USA > Tel: (973) 642 4958 > Fax: (973) 596 3617 > [email protected] > <Capture.JPG>
