NDLI: New Concepts in Intrusion Detection

Content Provider	IEEE Xplore Digital Library
Author	Meyerhoff, N.J.
Copyright Year	2008
Description	Author affiliation: Newton Sensor Analyses, Newton, MA (Meyerhoff, N.J.)
Abstract	This is a continuation of work presented in [1]. It appears possible to measure the Doppler frequency shift caused by radar impinging on blood pumped by the heart to infer the presence of a human in situations where other sensors cannot. This work is applicable to perimeter defense. The relation between the Doppler frequency shift and the pumping action of the heart was modeled mathematically. There is increasing interest in sending electromagnetic signals into the human body, not only for physical security but also for medical reasons [2] To estimate the detection range, propagation of a radar signal through the body is modeled. Input signal is dissipated primarily by scattering at organ interfaces, and attenuation in each organ. Scattering is caused by differences in the index of refraction at each interface. Scattering starts at the air-skin interface. In principal, the approach is valid for many radar frequencies, but high frequencies (GHz) are preferred. However, at these frequencies, significant signal attenuation is expected. Compromise frequencies are therefore being examined. Several hundred MHz might be a good alternative. In addition to examining different frequencies, different signal paths are being examined. Since the radar scans, its signal will enter at different parts of the body and therefore follow different paths, each of which will have a different attenuation. Body parts with expected low and high attenuations have been identified.
Starting Page	63
Ending Page	66
File Size	160396
Page Count	4
File Format	PDF
ISBN	9781424419777
DOI	10.1109/THS.2008.4534424
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-05-12
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Heart Radar measurements Biological system modeling Electromagnetic scattering Intrusion detection Humans Radar scattering Attenuation Doppler radar Frequency measurement
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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