Initial Collision Avoidance Algorithms for the Beacon-based Collision Avoidance System,

摘要

This document describes a set of baseline collision avoidance algorithms which can be used as a point of departure for the development of final algorithms for the FAA's Beacon-based Collision Avoidance System (BCAS). The algorithms were structured to permit great flexibility in an experimental environment such as NAFEC. They incorporate a number of selectable options in the collision avoidance logic and in the display output. One option permits the selection of either a passive mode logic or an active mode logic. When the passive mode is selected, other options allow horizontal positive or negative commands to be used. In addition, the display of positive or negative commands can be selected or suppressed, and limit vertical rate commands can be selected for display independently of positive or negative commands. Two types of Intruder Position Data (IPD)-flashing IPD's and ordinary IPD's-can also be selected for display. The logic can drive three types of cockpit displays namely, an ACAS display, a baseline IPC display, and a general purpose Plan View Display (PVD). (Author)