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]
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