Context:
Recently, the Prime Minister of India lauded Asia’s first demonstration of Performance-Based Navigation for helicopters for a flight from Juhu to Pune using GAGAN satellite technology.
Relevance:
GS III: Science and Technology
Dimensions of the Article:
- GAGAN Satellite Technology: GPS Aided GEO Augmented Navigation
- Performance-Based Navigation (PBN)
GAGAN Satellite Technology: GPS Aided GEO Augmented Navigation
- GAGAN is jointly developed by ISRO (Indian Space Research Organisation) and the Airports Authority of India (AAI).
Functionality:
- Utilizes a network of ground stations to enhance the GPS standard positioning service (SPS) navigation signal.
- Provides necessary augmentations to enhance accuracy, availability, and integrity for reliable GPS navigation throughout all flight phases.
- Enables users to depend on GPS for various aviation operations.
- Enhances position reporting accuracy, contributing to improved Air Traffic Management (ATM).
- Extends benefits to other modes of transportation, including maritime, highways, and railroads.
Space-Based Augmentation Systems:
- GAGAN is one of the four Space-Based augmentation systems available globally.
- Other systems include WAAS (US), EGNOS (Europe), and MSAS (Japan).
Performance-Based Navigation (PBN):
- PBN concept specifies performance requirements for aircraft RNAV (Area Navigation) systems.
- Focuses on accuracy, integrity, availability, continuity, and functionality for specific airspace operations.
- Shifts from sensor-based to performance-based navigation.
- Navigation specifications define the performance requirements and allowable navigation sensors and equipment.
-Source: The Hindu
