Evaluating Detection and Estimation Capabilities of Magnetometer-Based Vehicle Sensors
MITRE CORP MCLEAN VA
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In an effort to secure the northern and southern United States borders, MITRE has been tasked with developing Modeling and Simulation MS tools that accurately capture the mapping between algorithm-level Measures of Performance MOP and system-level Measures of Effectiveness MOE for currentfuture surveillance systems deployed by the Customs and Border Protection Office of Technology Innovations and Acquisitions TIA. This analysis is part of a larger MS undertaking. The focus is on two MOPs for magnetometer-based Unattended Ground Sensors UGS placed near roads to detect passing vehicles and estimate properties of the vehicles trajectory such as bearing and speed. The first MOP considered is the probability of detection. We derive probabilities of detection for a network of sensors over an arbitrary number of observation periods and explore how the probability of detection changes when multiple sensors are employed. The performance of UGS is also evaluated based on the level of variance in the estimation of trajectory parameters. We derive the Cramr-Rao bounds for the variances of the estimated parameters in two cases when no a priori information is known and when the parameters are assumed to be Gaussian with known variances. Sample results show that UGS perform significantly better in the latter case.
- Test Facilities, Equipment and Methods
- Miscellaneous Detection and Detectors