The Indian Air Force (IAF) has initiated a significant endeavour to bolster its capabilities by seeking Indigenous Design, Development, and Manufacturing of an Airborne Multi-Constellation GNSS (Global Navigation Satellite System) Receiver and converter. This innovative initiative aims to enhance the performance of airborne platforms, including fighters, helicopters, and transport aircraft, especially during operational missions where navigation and weapon deployment tasks are critical.

The primary objectives of this development are as follows:

(a) Enhanced Navigation and Weapon Employment: Airborne platforms rely on GPS/GLONASS receivers and Inertial Navigation GPS (INGPS) systems to determine their precise positions for navigation and weapon-related tasks. However, these systems can be vulnerable to jamming or spoofing by adversaries during operational missions, potentially degrading their performance and affecting mission execution.

(b) Multi-Constellation Capability: To mitigate vulnerabilities and ensure seamless operations in intended geographical areas, the IAF seeks a GNSS receiver capable of functioning on multiple Satellite Navigation System (SNS) Constellations. This capability would extend beyond GPS and GLONASS to include systems like IRNSS, BEIDOU, and GALILEO.

(c) Anti-Spoofing and Jamming Detection: The Airborne Multi-Constellation GNSS Receiver and converter should incorporate anti-spoofing capabilities to detect and counter adversarial attempts to disrupt navigation systems. It should also provide the ability to switch to alternate satellite constellations when jamming or spoofing is detected.

Key Parameters of the Airborne Multi-Constellation GNSS Receiver & Converter:

(a) Upgrade Solution: The system should serve as an upgrade solution for legacy airborne GPS/GLONASS receivers without requiring hardware or software upgrades to the existing system.

(b) Multi-Satellite Reception: It should have the capability to receive signals from multiple satellite constellations, including IRNSS, BEIDOU, and GALILEO, in addition to GPS and GLONASS.

(c) Jamming and Spoofing Detection: The system should incorporate advanced detection mechanisms to identify and counteract jamming and spoofing attempts. It should also provide the option to switch to alternative satellite constellations for uninterrupted operation.

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