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MLR-2000 multimode receiver
As worldwide standards migrate from terrestrial-based navigation aids to satellite-based systems, worldwide interoperability is becoming a growing issue, impacting civilian and military operators.
- Instrument landing system (ILS) is experiencing airspace/frequency saturation and is subject to ICAO FM-immunity restrictions.
- An extended transition period to the microwave landing system (MLS) and GPS landing system (GLS).
Each world region will transition to either MLS or GLS, or both, resulting in a mix of landing aids. This presents a challenge for operators requiring true global interoperability.
BAE Systems' answer is a family of multimode receivers (MMRs). The MLR-2000 provides FM-immune ILS, MLS, GPS en route navigation, VHF omnidirectional range (VOR), embedded VHF Data Link (VDL) for GLS, as well as growth to future LAAS, WAAS, GRAM/SAASM and NAVWAR.
In addition, BAE Systems' MMR represents the ideal host for GPS functionality needed to address future communication navigation surveillance / air traffic management (CNS/ATM) required navigation performance compliance. BAE Systems continues to support the joint precision approach and landing system (JPALS) program. JPALS will extend LAAS capability to military operators in need of precision landing guidance in hostile operating scenarios.
BAE Systems flew the first ILS/MLS/GLS MMR in 1995 for the U.S. Air Force. Interoperability with GLS and TRN-45 mobile MLS ground stations, as well as ILS and VOR stations around the world, has already been proven. As other suppliers are far from a complete MMR, the MLR-2050 already contains an FM-immune, or protected ILS, VOR, MLS, VDL, and P(Y) code all-in-view GPS receiver. The system is capable of providing 100% backward compatibility to the ARN-108, -112 and -147 ILS/VOR receivers. A successful flight test in GLS mode using the built-in C-band data link demonstrated an optional capability for Europe.
The MLR-2000 product line has already been qualified to severe fighter (F-16, F-15) environment levels, providing a low risk MMR solution for the worldwide GATM/GANS user community.
The MLR-2050 is currently operational on the USAF C-17 Globemaster fleet, flying ILS CAT II and MLS CAT II approaches, and reflecting operational reliability of more than 20,000 hours.
A key attribute of the MLR-2000 family is its inherent robust architecture, which provides enhanced modularity and flexibility to adapt to changing landing system requirements. With this open-system approach, the BAE Systems MMR line is positioned to meet any combination of landing and GPS/VOR navigation modes.
MLR-2000 Operational Modes:
- Instrument landing system (ILS)
– International Civil Aviation Organization (ICAO) FM immune - Microwave landing system
- GPS en route navigation
- Differential GPS (DGPS) precision approach
- VHF omnidirectional range (VOR) NAV/NPA
- Local Area Augmentation System (LAAS) Differential GPS (DGPS ) VHF data link
- Growth to JPALS / NAVWAR
