Introduction
The global market for Automatic Dependent Surveillance‑Broadcast (ADS-B) systems is rapidly gaining momentum. According to a report by Stratview Research, the Automatic Dependent Surveillance‑Broadcast market was estimated at around USD 636.62 million in 2021 and is forecast to reach approximately USD 2,467.14 million by 2028, representing a CAGR of roughly 21.07% for the period 2022-2028. ADS-B is a satellite-based surveillance technology where aircraft periodically broadcast their position, velocity and identification data to ground stations and other aircraft, offering higher situational awareness than legacy radar systems.

Applications
ADS-B systems serve both ground-based and airborne surveillance applications. On the ground, they improve coverage in terminal manoeuvring areas (TMA), remote regions and in oceanic airspace where radar is limited. The TMA surveillance segment held a leading share in 2021. In the air, ADS-B Out and ADS-B In systems enable aircraft to broadcast their position and receive traffic-info from others, supporting collision-avoidance, traffic management and unmanned aerial vehicle (UAV) integration.

Key Drivers
Several factors underpin this strong growth:

• Regulatory mandates (for example, in North America via the Federal Aviation Administration) requiring aircraft to install ADS-B systems.
• Modernisation of air traffic management infrastructure worldwide, including new airports and upgrades to surveillance networks.
• Growth of UAVs and drones, and the need for surveillance systems compatible with unmanned traffic management (UTM).

Future Opportunities
Opportunity awaits across several fronts: The ADS-B In segment—enabling traffic-info and situational awareness aboard aircraft—is expected to record the highest growth. Emerging regions such as Asia-Pacific and Latin America, with soaring air-traffic volumes and infrastructure expansion needs, present strong potential for ADS-B deployment. Additionally, retrofit markets for legacy fleets and integration with UAV and CNPC (control and non-pilot communications) systems open new revenue corridors.

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Conclusion
The ADS-B market is set for a transformative growth phase. With technology mandates, aviation-traffic growth and infrastructure upgrades aligning, the ~21% CAGR underscores a shift toward smarter, more connected surveillance systems. Companies that prioritise innovation in ADS-B Out/In systems, retrofit solutions and offer ground-station infrastructure for emerging markets will be positioned to capture the significant value ahead in this evolving aviation-surveillance landscape.