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GNSS Denied Navigation

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GNSS-Denied Navigation (TERCOM + DSMAC)

Sovereign Air Superiority through Scalable & Intelligent Autonomous Units with TERCOM + DSMAC fusion.

TERCOM (Terrain Contour Matching) and DSMAC (Digital Scene-Matching Area Correlator) form the navigation layer in a ROS2-based, Gazebo-validated environment. Together they compare terrain contours, scene features, and reference imagery, pairing with redundant visual landmarks, leader-follower coordination, and encrypted telemetry when GNSS is denied.

GNSS-Denied NavigationFrom $2,499
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DSMAC visual features detected over reference terrain imagery 1DSMAC visual features detected over reference terrain imagery 2

DSMAC validation run

Correlate the scene. Inspect the error.

Review the QGroundControl simulation view as DSMAC scene matching and positioning-error traces are evaluated during a GNSS-denied run.

Why Teams Choose GNSS Denied Navigation

Core capabilities that make GNSS Denied Navigation effective in real operational environments.

DSMAC Scene Matching

Correlate the scene.

Compare visual features with reference imagery for GNSS-denied position estimation.

Positioning Error Review

Inspect the trace.

Review displacement-error behavior across DSMAC simulation runs.

TERCOM Redundancy

Reinforce the lock.

Pair scene correlation with terrain contours and visual landmarks.

ROS2 + Gazebo Swarm

Validate the system.

Connect physics, sensors, formations, and encrypted mesh workflows.

RF-Resilient Link

Keep the swarm aligned.

Encrypted telemetry carries orientation, heading, and position.

Key Capabilities

A closer look at the functions and workflows that define GNSS Denied Navigation.

DSMAC

Correlate the scene.

Digital scene matching adds redundant visual environmental sensing.

Positioning Error

Make drift visible.

Use simulation traces to review displacement error during validation.

TERCOM

Match the terrain.

Terrain contours support autonomous location lock without GNSS.

ROS2 + Gazebo

Simulate the swarm.

High-fidelity physics and sensor validation in a modular world.

Leader-Follower

Scale the formation.

Formation control is designed for one leader and up to 50 followers.

UVDAR + Vision

Bridge RF dropouts.

Optical commands and follower cameras preserve leader tracking and geometry.

Formation Workflows

Maneuver as one.

Rigid-body maneuvering and formation transitions keep distance vectors precise.

Firmware + Encryption

Protect the swarm link.

Firmware workflows pair with authenticated, sequenced MAVLink packets.

Operational outcomes

What this product is meant to unlock

The practical advantages teams gain when deploying GNSS Denied Navigation in the field.

  • DSMAC scene correlation and positioning-error review for GNSS-denied validation.
  • TERCOM and DSMAC fusion with redundant terrain and visual landmark sensing.
  • ROS2 and Gazebo workflows for high-fidelity multi-drone simulation.
  • Leader-follower formation control designed to scale to one leader and up to 50 followers.
  • ROS2 DDS coordination with distributed decision logic across the swarm.
  • Encrypted mesh telemetry for heading, orientation, and position under disrupted links.
  • UVDAR optical commands and computer vision tracking for severe RF dropouts.
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