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The document referenced below is part of the NCJRS Library collection.
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NCJ Number: NCJ 187102     Find in a Library
Title: Offender Wide Area Continuous Electronic Monitoring Systems: Project Summary
  Document URL: PDF 
Author(s): Joseph Hoshen ; George Drake
Date Published: 2000
Page Count: 18
  Annotation: This analysis of second-generation systems to provide continuous electronic monitoring of offenders over a wide geographic area explains the current systems and the time- of-arrival methods used in many geolocation techniques.
Abstract: The second-generation systems will enable corrections agencies to monitor and supervise offenders continuously over a wide geographical area with diverse terrain and construction patterns. The major methods used by geolocation vendors include the angle of arrival, the time difference of arrival of signals received at geographically separated antennas, the global positioning system (GPS), server-assisted GPS, the enhanced signal strength method, and location fingerprinting. Two companies introduced GPS-based continuous monitoring systems for criminal offenders in 1997. Jurisdictions in several States use these systems. Another development is the Federal Communications Commission directive to provide enhanced 911 (E911) to cellular phone users. A model for a one-cell second-generation system consists of a service center, interrogator transmitter, locator tags, receivers and their antennas, data lines, and GPS satellites for space-based systems. A simulation model for the tracking system will help clarify architecture, requirements and design issues, and play for potential corrections scenarios before the system is deployed. Figures, tables, and 13 references
Main Term(s): Community-based corrections (adult)
Index Term(s): Alternatives to institutionalization ; Technical evolution ; Electronic monitoring of offenders ; Offender tracking systems ; NIJ grant-related documents
Sponsoring Agency: National Institute of Justice (NIJ)
US Department of Justice
Office of Justice Programs
United States of America
Grant Number: 98-LB-VX-K005
Sale Source: New Mexico Dept of Corrections
1422 Paseo De Peralta
Santa Fe, NM 87503
United States of America

NCJRS Photocopy Services
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United States of America
Type: Report (Study/Research)
Country: United States of America
Language: English
Note: See NCJ-187101 for the Executive Summary
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