Study on a Non-contact Life Parameter Detection System Using Millimeter Wave
Abstract：Objective To study the basic principle and design method of a non-contact life detection system using 36 GHz millimeter wave.Method Continuous wave radar techniques and signal processing techniques including zero intermediate frequency,frequency domain accumulation and adaptive noise cancellation were used in the system.Result When the radiated power was about a milliwatt(mW)and detection range was up to 3 meters,the experimental results showed that this system can well detect the heartbeat and respiration signals from human subjects through common clothes and quilts.Conclusion The system is feasible and effective due to its high detection sensiti-vity,small antenna,simple structure,easy miniaturization and safety to the human subject.It can be used for long-term continuous monitoring,especially suitable for the astronauts.
Keywords：millimeter wavelife parametersnon-contact detectionradar techniquessignal processing
Publication Date：2004-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 157-161 )