91探花

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Global Navigation Satellite System (GNSS) Projects

GNSS

91探花 has a rich history in the research and development of position, navigation, and timing systems utilizing the Global Positioning System (GPS).  Research has concentrated on:

  • Precision Landing Systems
  • Attitude based systems
  • Software defined radio (SDR) architectures
  • Anti-jam antenna arrays
  • High performance signal monitoring
  • Differential GPS and RTK (real-time kinematic) systems
  • Sensor fusion for remote sensing and autonomous PNT
  • Satellite and CubeSat systems.

Ground-Based Augmentation Systems鈥 (GBAS)

  • Implementation process
    • Develop operational requirements
    • Formulate candidate system architectures
    • Specify minimum performance in terms of system architecture specific parameters
    • Generate performance verification procedures
  • Includes the development of flight inspection criteria for the associated instrument procedure
  • Criteria development process
    • Consider test/qualification activities accomplished prior to flight inspection (inspection 鈮 design approval)
    • Assess site-specific elements of Local-Area Augmentation System (LAAS) procedures and confirm availability of service
    • Identify objectives and parameters to be assessed
    • Generate assessment procedures and tolerances
    • Conditions required to put facility/procedure in service
    • Develop inspection criteria and procedure that facilitate effective, efficient sampling of service volume
  • USDOT/FAA Notice 8200.116
    • Flight Inspection/ Validation of GBAS Precision Approach and Flight Procedures
  • Newark Liberty International Airport (KEWR)
    • Honeywell SLS-4000 ground facility
    • December 8-15, 2009
    • Commissioned GLS (LAAS) approach procedures to runways 22L, 22R and 11
  • Houston George Bush Intercontinental Airport (KIAH)
    • February 24 鈥 March 4, 2012
    • Six instrument approach procedures commissioned