Probability of detection for cooperative sensor systems

摘要

Abstract: In this paper, we quantify how communication increases the effective range of detection of unattended ground sensors. Statistical analysis is used to evaluate the probability of detection for multiple sensors using one, two, and infinite levels of cooperation. Levels of cooperation are defined as the levels of communication between sensors. One level of cooperation means that one sensor passes its state information to several other sensors within a limited communication range, but this information is not passed beyond this range. Two levels of cooperation means that the state information received by this first set of sensors is relayed to another set of sensors within their communication range. Infinite levels of cooperation means that the state information is further percolated out to all sensors within a communicating group. With large numbers of sensors, every sensor will have state information about every other sensor regardless of communication range. With smaller numbers of sensors, isolated groups may form, thus lowering the probability of information transfer.!7