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NCJRS Celebrates National Library Week April 12-18

National Library Week

Started in 1958, National Library Week is a nationwide observance celebrated by all types of libraries - including the NCJRS Virtual Library. NCJRS invites you to explore the breadth and scope of the NCJRS Virtual Library collection and services. With more than 220,000 collection documents and 60,000 online resources, including all known Office of Justice Programs works, it is one of the world’s largest criminal justice special collections.

We encourage your Feedback. Tell us how you use the NCJRS Virtual Library and Abstracts Database, how you access the collection, and any ways we can improve our services.

NCJRS Abstract

The document referenced below is part of the NCJRS Library collection.
To conduct further searches of the collection, visit the NCJRS Abstracts Database.

How to Obtain Documents
NCJ Number: NCJ 241676     Find in a Library
Title: Standoff Through the Wall Imaging Sensor User Evaluation, FCC Certification and Performance Improvement
  Document URL: PDF 
Corporate Author: AKELA
United States of America
Date Published: 03/2013
Page Count: 36
  Annotation: This report explains the technology and describes the development of an ultra-wide band radar technology that has the capability to produce an imaging sensor that can both map the internal structure of a building and locate persons inside the structure.
Abstract: The imaging system was developed by AKELA, Inc., and is called ASTIR (AKELA Standoff Through-the-Wall Imaging Radar). The underlying technology of ASTIR is multiple antenna, continuous wave, frequency stepping radar in a portable case that can be positioned at a standoff distance of up to 98 feet from the target building. Radar information is processed in real time on a laptop computer to allow detection and tracking of stationary or moving individuals within a building. AKELA leveraged radar technology being developed for military platforms, adapting it to fulfill the needs of law enforcement (LE), and at the same time, navigating the technical constraints and requirements particular to Federal Communications Commission (FCC) approved operation in an urban environment. Initially, a prototype system that operated between 500 Mhz and 2000 Mhz was tested both in the laboratory and on a challenging structure with 26.7 cm-thick double-reinforced concrete walls and metallic clutter objects located within the building. Both stationary and moving individuals were detected and tracked within the building. It has also been demonstrated that the use of multiple systems can provide significant situational awareness information to LE in resolving detected persons within groups and individuals concealed behind metallic barriers. In order to satisfy FCC constraints, the AKELA prototype radar was modified to operate in the 2900 Mhz to 3600 Mhz band. In addition, AKELA requested a waiver for LE operation in emergency operations in this band; waiver approval was received; however, final FCC certification is required prior to sale for LE application for field evaluation and operational deployment. 23 figures and 3 references
Main Term(s): Police equipment
Index Term(s): Research and development ; Radar detectors ; Thermal imaging ; Building searches ; 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: 2011-IJ-CX-K005
Sale Source: NCJRS Photocopy Services
Box 6000
Rockville, MD 20849-6000
United States of America
Type: Research (Applied/Empirical) ; Report (Technical)
Country: United States of America
Language: English
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