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IWR1443BOOST: FMCW design about vital-signs project

Part Number: IWR1443BOOST
Other Parts Discussed in Thread: MMWAVE-SDK

1. In "lab0002-vital-signs" project, I find a profile file named 'profile_2d_VitalSigns_20fps.cfg', I want to know what the meaning of each number in it is. Is there a document about it?

2. According to the FMCW design of "lab0002-vital-signs" project in "mmwave_industrial_toolbox_2_5_2" file folder,  I use the mmWaveStuido to design FMCW, which has a frame option  'no of chirp loops'.

What is the difference between the following two settings? And what is the difference between the IF signals obtained by these two settings?