5C G CaroJ A Bloice.Contactless apnoea detector based on radar[J]. Lancet,1971,30(2):959-961.
6Y Schutz,E Ravussin,R Diethelm,et al.Spontaneous physical activity measured by radar in obese and control subject studied in a respiration chamber[J].Int J Obes,1982,(6):23-28.
8M Uenoyama,T Matsui,K Yamada,et al.Non-contact respiratory monitoring system using a ceiling-attached microwave antenna[J]. Med Biol Eng Comput,2006,(44):835-840.
9C I Franks,B H Brown,D M Johnston.Contactless respiration monitoring ofinfants[J].Med Bio Eng,1976,(14):306-312.
10Florian Michahelles,Ramon Wicki,Bernt Schiele.Less contact:heart-rate detection without even touching the user[A]. Eighth IEEE International Symposium on Wearable Computers Conference (ISWC)[C].2004.
