GAGAN Satellite Technology |Ias Banenge

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

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Dimensions of the Article:

1. GAGAN Satellite Technology: GPS Aided GEO Augmented Navigation
2. 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