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首页> 美国政府科技报告 >Time Difference of Arrival System for Cell Phone Localization in Correctional Facilities.
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Time Difference of Arrival System for Cell Phone Localization in Correctional Facilities.

机译：矫正设施手机定位到达系统的时差。

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Cell phones, smuggled in by guards or family members and activated with hard-to-trace prepaid calling plans, are a lifeline for criminals and gang members to order hits, buy drugs and plan escape attempts from behind bars. Correction officials have identified the problem of cell phones in prisons as one of the toughest issues they face. The purpose of this project is to design, implement and test an effective system for the detection and localization of cellular phones in correctional facilities. The key purpose of the proposed effort is to mature the prototype Time Difference Of Arrival (TDOA) and signal strength detection for location system from laboratory to deployment in a correctional facility, and capable of detecting and locating cell phones in real time. Another key purpose is to explicitly use the known building floor plan in the algorithm that processes the received cell phone signals in to the likely location.

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