Resolution advisory display instrument for TCAS guidance

摘要

An aircraft indicating system for displaying a resolution advisory signal from a Traffic Advisory and Collision Avoidance System provides an indicating pitch attitude symbol to the pilot engendering an instinctive response to avoid a collision. A driving circuit converts a TCAS signal in the form of a vertical speed command to a pitch command for energizing the indicating symbol by effecting a vertical displacement thereof in accordance with the guidance resolution advisory. The display signal is generated in accordance with the relationship: mited to + or - 30 DEG THETA CMD=commanded pitch attitude defining the upper and lower pitch limits of the resolution advisory symbology THETA EXIST=current pitch angle VZTCAS=TCAS vertical speed command VZEXIST=current vertical speed VT=true airspeed K=conversion constant.