Insights
Perspectives on GPS-denied navigation, autonomous systems, and the industries we serve.
Navigating Over Low-Feature Terrain: Water, Salt Pans and Honest Uncertainty
Open water, salt pans and uniform crops give a terrain matcher little to work with. What an honest navigation system should do when the ground goes quiet.
Designing a GPS-Denied Navigation Trial: Ground Truth, Metrics and Failure Cases
A trial that only flies easy ground on clear days proves very little. How to design a GPS-denied navigation trial that tells you something useful.
Integrating a Secondary Navigation Source With Your Autopilot
What autopilot-agnostic really means, how an EKF blends position sources, how failover should behave, and the testing you should do before trusting it.
Preparing Terrain Data for a GPS-Denied Flight: DEMs, Imagery and Margins
Terrain-referenced navigation is only as good as the map it matches against. How to source, check and size elevation and imagery data before a flight.
Infrastructure Inspection Where GPS Struggles: Bridges, Canyons and Corridors
Bridges, urban canyons, pipelines and power lines all degrade GPS in different ways. How mixed-coverage inspection missions can keep their position.
Agricultural Drone Missions Without GPS: What Works and What Does Not
Long broadacre flights, spray boundaries and repeat surveys all lean on GPS. Here is what terrain-based navigation can and cannot do when it drops out.
Choosing Hardware for Onboard UAV Navigation: Compute, Cameras and Budgets
What actually matters when specifying compute, cameras and an IMU for onboard navigation on a fixed-wing UAV, and why off-the-shelf is the right target.
How Terrain-Referenced Navigation Works: Sensors, Maps and Matching
A plain-language walk through terrain-referenced navigation: what the aircraft senses, what it compares against, and why absolute position beats drift.
What Is GPS-Denied Navigation and Why Does It Matter?
GPS signals can be jammed, spoofed, or simply unavailable. Here is what that means for drone operators and what the alternatives look like.
BVLOS Drone Operations in Australia: Navigation Redundancy for CASA Approval
How GPS-independent navigation strengthens BVLOS applications under Australia's evolving regulatory framework.
TerrainSLAM vs. GPS: When Satellite Navigation Isn't Enough
A practical comparison of satellite-based and terrain-based navigation — and why the best answer is often both.
Drone Inspection in Open-Cut Mines: Solving the GPS Signal Problem
Why GPS signals degrade in mining environments and how terrain-based navigation provides reliable positioning where it matters most.
Navigating Through Electronic Warfare: GPS-Independent Drone Systems for Defence
GPS denial is a standard tactic in modern electronic warfare. How can unmanned systems maintain navigation in contested environments?
GNSS Jamming and Spoofing: Why the Quiet Failure Is the Dangerous One
Jamming takes satellite navigation away and the aircraft knows it. Spoofing replaces it with something false. Why that difference matters to an autopilot.
Fixed-Wing vs Multirotor for Long-Range Survey: Why Navigation Needs Differ
Multirotors and fixed-wing aircraft suit different jobs, and they fail differently when position goes bad. Why that matters for long-range survey.
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