STRATA SURVEILLANCE SERVICES・A PRODUCT OF SKYGRID

360° awareness for 
low-altitude operations

High-integrity detection and tracking of cooperative and non-cooperative aircraft, delivering persistent situational awareness that safe separation and scalable AAM operations demand.

Legacy surveillance infrastructure has blind spots at low altitude. Onboard sensing adds weight and complexity. Strata Surveillance Services provides a ground-based alternative, delivering a single reliable track per aircraft from multiple sensor sources (cooperative and non-cooperative) via track validation, correlation, and source selection.

Core Capability

High Integrity GBTS

Strata’s Ground-Based Traffic Surveillance (GBTS) is an aviation-grade surveillance service providing accurate, low-latency tracking of all aircraft, cooperative and non-cooperative, across low-altitude and complex operational environments.

Multi-sensor correlation. Validated tracks

By fusing ADS-B, multilateration, and non-cooperative radar sources, GBTS delivers validated track data meeting DO-381A performance and latency requirements. Prioritized or full-track outputs are delivered to subscribers based on operational needs, from fleet-level awareness to safety-critical applications.

GBTS fills critical surveillance gaps in legacy ANSP infrastructure, particularly in low-altitude, urban, and terrain-constrained environments and, more significantly, provides the ground-based traffic awareness that enables autonomous aircraft to safely access and operate within the airspace.

– High-integrity traffic detection and tracking, cooperative and non-cooperative aircraft

– Tactical data support for separation and DAA applications

– Situational awareness data for fleet managers and infrastructure stakeholders

– Conflict detection and advisory support

– Integration with Strata operational and traffic management services

What it means for your operations

Enhanced safety margins

Persistent 360° traffic awareness enables reliable conflict prevention and supports safety-critical separation and DAA services.

Reduced aircraft weight

Ground-based detection removes the need for onboard radar payloads, optimizing aircraft performance and mission capacity. It is key to enabling autonomous aircraft integration by offloading sensing responsibilities to ground infrastructure.

Low-altitude coverage

Designed specifically for urban and complex terrain environments where legacy ANSP radar provides inadequate or no coverage.

Scalable at fleet density

Enables tactical separation and detect-and-avoid services at fleet scale, supporting high-density AAM and AFR operations.

System resilience

Provides a redundant, independent surveillance layer that enhances overall system safety in degraded sensing environments.

DO-365 compatible

High-integrity data enables both manual and automated "remain well clear" and detect-and-avoid capabilities aligned with regulatory standards.

The surveillance foundation that enables safe separation, detect-and-avoid support, and scalable Advanced Air Mobility operations in low-altitude airspace.