Systems and methods for improving bearing availability and accuracy for a tracking filter

摘要: Systems and methods for improving bearing availability accuracy in a traffic collision-avoidance system (TCAS). In an exemplary method, if only single phase-difference value is received one of two two-element antennas, processor determines expected maximum antenna element the elements that did not receive target signal source; estimates include value, based on previously determined predicted value; calculates estimated from other antenna. The determination signals associated with source elevation information predefined respective pair. An output device outputs calculated bearing.