November 21, 2011
TECHNOLOGY AREAS: Information Systems, Biomedical, Electronics, Battlespace
OBJECTIVE: Demonstrate the ability to collect, localize, and evaluate physiological signals (e.g., heart rate) at distances greater than 10 meters, non-line-of-sight, and through solid objects (walls, rock, concrete, etc.).
DESCRIPTION: There is a need to remotely detect, collect, and evaluate physiological signals of interest. Applications and concepts-of-operations (CONOPs) that would benefit from this capability include, but are not limited to: building-clearing, warfighter health monitoring or battle damage assessment and triage, situational awareness and assessment. Existing micro-impulse radar (MIR) and ultra-wideband (U) technologies have the capability of detecting heartbeat and respiration at distances up to- 8 meters (1) but are limited in at greater distances and in challenging environments, such as penetration through thick or multiple walls, concrete, and RF-noisy environments. There is interest in counting and localizing the sources of multiple physiological signatures in a cluttered environment. For example, in a building that has experienced a catastrophic event (fire, earthquake, etc.), the detection of survivors and assessment of their medical condition, in addition to their location to within 1 meter accuracy, would improve the likelihood of recovery of personnel and their survivability. Additionally in a crowded environment it is highly challenging to uniquely identify persons based on collection of physiological signatures, such as electrocardiograms (ECGs). It is possible that high-frequency ECGs or other signals could improve the confidence level in unique identification. Approaches using “on body” sensors that transmit signals to remote locations will NOT be considered.
This article was posted: Monday, November 21, 2011 at 4:18 am