False Discrete Targets in the En Route System
FEDERAL AVIATION ADMINISTRATION WASHINGTON DC SYSTEMS RESEARCH AND DEVELOPMENT SERVICE
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This report describes the results of a two year study concerning the problem of false discrete target reports which appear in en route system. False target rates from selected secondary radar sites in the en route system are given. Six candidate fixes which attack the problems associated with these rates are examined. False reports are divided into ringaround, splits, and reflections. A false report not classified as a ringaround or a split is classified as a reflection. Several fixes against the ringaround type of false target are available and one of them, based on the double coverage provided in the en route system, is recommended for implementation. A fix against the split type of false target report is available and consideration of implementation is recommended. A fix against the reflection type of false target is recommended in the special case where the physical reflector can be identified.
- Air Navigation and Guidance
- Active and Passive Radar Detection and Equipment