MBDT for RADAR中的主题 Radar FFT processing https://community.nxp.com/t5/MBDT-for-RADAR/Radar-FFT-processing/m-p/763724#M35 <HTML><HEAD></HEAD><BODY><P>What is the number of points used to perform the range_FFT the doppler_FFT and the reason why you need this number of points</P><P>regards,</P><P></P><P>Olivier</P></BODY></HTML> Wed, 21 Feb 2018 10:27:23 GMT olivierdoare 2018-02-21T10:27:23Z Radar FFT processing https://community.nxp.com/t5/MBDT-for-RADAR/Radar-FFT-processing/m-p/763724#M35 <HTML><HEAD></HEAD><BODY><P>What is the number of points used to perform the range_FFT the doppler_FFT and the reason why you need this number of points</P><P>regards,</P><P></P><P>Olivier</P></BODY></HTML> Wed, 21 Feb 2018 10:27:23 GMT https://community.nxp.com/t5/MBDT-for-RADAR/Radar-FFT-processing/m-p/763724#M35 olivierdoare 2018-02-21T10:27:23Z Re: Radar FFT processing https://community.nxp.com/t5/MBDT-for-RADAR/Radar-FFT-processing/m-p/763725#M36 <HTML><HEAD></HEAD><BODY><P>Hi Olivier,</P><P></P><P>In the example shown&nbsp;<A href="https://community.nxp.com/thread/468027">Accelerate the Discrete Fourier Transform with NXP SPT </A>&nbsp;the number of points used for Range FFT is M=512 and for Doppler FFT is N=256, which means that one frame has N=256 chirps, and each chirp has M=512 samples.</P><P></P><P>In order to perform the FFT algorithm, the&nbsp;<SPAN>number of points (M and N)</SPAN>&nbsp;must be a power of 2. In general, the larger number the better the resolution.</P><P></P><P>Regards,</P><P>Iulian</P></BODY></HTML> Fri, 23 Feb 2018 08:51:49 GMT https://community.nxp.com/t5/MBDT-for-RADAR/Radar-FFT-processing/m-p/763725#M36 iulianbulancea 2018-02-23T08:51:49Z