Radar characteristics of pedestrians at 77 GHz

Studying pedestrian radar scattering features will lead to development of more reliable pedestrian collision avoidance radar algorithms. In this paper, the study of backscattering features of 77 GHz radar from a pedestrian in different postures is discussed. Radar scattering patterns were collected from 9 human subjects to investigate possible radar signatures associated with pedestrian at 77 GHz. Measured backscattering changes for the standing and walking postures. Full-wave simulation and measurement are shown to be in agreement. Doppler frequency shift associated with pedestrian motion was also studied at 77 GHz. The time-varying RCS from walking to standing posture is extracted from these measurements.

[1]  K. Nishikawa,et al.  Radar cross section for pedestrian in 76GHz band , 2005, 2005 European Microwave Conference.

[2]  F. Groen,et al.  Human walking estimation with radar , 2003 .

[3]  C. Hornsteiner,et al.  Characterisation of human gait using a continuous-wave radar at 24 GHz , 2008 .

[4]  M.-M. Meinecke,et al.  Radar sensors and sensor platform used for pedestrian protection in the EC-funded project SAVE-U , 2004, IEEE Intelligent Vehicles Symposium, 2004.

[5]  J.-M. Nicolas,et al.  Micro-Doppler analysis of wheels and pedestrians in ISAR imaging , 2008 .

[6]  Chi-Chih Chen,et al.  Numerical study of pedestrian RCS at 76–77 GHz , 2013, 2013 IEEE Antennas and Propagation Society International Symposium (APSURSI).

[7]  P. Deloof,et al.  Real time implementation of reconfigurable correlation radar for road anticollision system , 2008, 2008 IEEE International Conference on Industrial Technology.