Differential GPS for precision approach: commercial technology and Navy/Marine Corps requirements
Eipp, Thomas B.
Boger, Dan C.
Clynch, James R.
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Currently, the Department of Defense DoD uses several Precision Landing Systems (PLS) including the Instrument Landing System (ILS), Automatic Carrier Landing System (ACLS), and Precision Approach Radar (PAR). Each system requires different avionics, ground station equipment and are not universally implemented in the different services. This has lead to interoperability problems among the services. Additionally, these landing systems have numerous deficiencies, which include deployablility, manpower requirements, and frequency congestion. Therefore, a new Precision Landing System is necessary to meet DoD requirements. An evaluation of several different Differential GPS systems was performed. This evaluation involved a comparison of system capabilities against the requirements established by the Federal Aviation Administration (FAA) and the DoD requirements. The results showed that most Commercial Off The Shelf (COTS) Differential OPS systems meet or exceed the requirements identified by the DoD.
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