topic FPGA based FFT analysis - array? in LabVIEW
https://forums.ni.com/t5/LabVIEW/FPGA-based-FFT-analysis-array/m-p/3369749#M992123
<P>hi</P><P>How can I analyze the spectrum given by the FPGA-based FFT, within the FPGA?</P><P>The "analysis" here can be for example to calculate the integral of the spectrum in a given window of frequencies (a sort of lock-in).</P><P>I can do it in the host, using a FIFO for the transfer and analyzing the <STRONG>array</STRONG> (of 8132 points) which comes out of the FIFO in the host. But is the same possible in the FPGA? Can I put the output of the FFT into an array and analyze it without leaving the FPGA? Or should I follow a different strategy?</P><P> </P><P>The project requires to calculate the spectrum of an input signal, to analyze it, to feed a PID with the result of this analysys, and to send an output signal from the PID. Therefore speed is important and all should live in the FPGA.</P><P> </P>Thu, 17 Nov 2016 09:40:33 GMTfpdx2016-11-17T09:40:33ZFPGA based FFT analysis - array?
https://forums.ni.com/t5/LabVIEW/FPGA-based-FFT-analysis-array/m-p/3369749#M992123
<P>hi</P><P>How can I analyze the spectrum given by the FPGA-based FFT, within the FPGA?</P><P>The "analysis" here can be for example to calculate the integral of the spectrum in a given window of frequencies (a sort of lock-in).</P><P>I can do it in the host, using a FIFO for the transfer and analyzing the <STRONG>array</STRONG> (of 8132 points) which comes out of the FIFO in the host. But is the same possible in the FPGA? Can I put the output of the FFT into an array and analyze it without leaving the FPGA? Or should I follow a different strategy?</P><P> </P><P>The project requires to calculate the spectrum of an input signal, to analyze it, to feed a PID with the result of this analysys, and to send an output signal from the PID. Therefore speed is important and all should live in the FPGA.</P><P> </P>Thu, 17 Nov 2016 09:40:33 GMThttps://forums.ni.com/t5/LabVIEW/FPGA-based-FFT-analysis-array/m-p/3369749#M992123fpdx2016-11-17T09:40:33ZReĀ : FPGA based FFT analysis - array?
https://forums.ni.com/t5/LabVIEW/FPGA-based-FFT-analysis-array/m-p/3370837#M992517
<P>Hi fpdx,</P>
<P> </P>
<P>Can you send us your project/VI or screenshots ?</P>
<P>Have you tried to use a target-scoped FIFO in your FPGA ?</P>
<P> </P>
<P>Best regards,</P>Mon, 21 Nov 2016 08:47:46 GMThttps://forums.ni.com/t5/LabVIEW/FPGA-based-FFT-analysis-array/m-p/3370837#M992517AllamSamir2016-11-21T08:47:46Z