A human motion track detecting method based on frequency modulated continuous wave( FMCW) radar is proposed by using IWR 1443 mm wave sensor. The FMCW radar system is constructed by IWR1443 to collect the position information of moving targets
and adopt linear interpolation
de-outlier
extract behavioral key points and smooth filtering to deal the collected data. Human motion trajectory can be detected with prencision of 0. 2 m.