Emitter Location: Reporting Location Accuracy

摘要

When comparing the oper-ational value of direc-ion-finding (DF) systems, one key parameter is the effective accuracy. For angle-of-arrival (AOA) systems, this accuracy is usually stated as the root-mean-square (RMS) angular error. In full emitter-location systems (e.g., multiple angle-of-arrival DF stations), the emitter-location accuracy is often stated as the circular-error probable (CEP) or the elliptical-error probable (EEP) When an emitter location is reported to someone making decisions based on that information (e.g., a commander trying to determine where an enemy asset is located), the CEP or EEP defines the location uncertainty in the measurements being reported from the emitter-location system. This circle or ellipse drawn on a map display can be useful in the decision-making process.