https://aerospace.bizix.com.au/blog/Bizix Aerospace articles on GPS-denied and terrain-referenced navigation, BVLOS, mining, defence, agriculture and infrastructure inspection with fixed-wing UAVs.en-auhttps://aerospace.bizix.com.au/blog/integrating-secondary-navigation-source-autopilot.htmlhttps://aerospace.bizix.com.au/blog/integrating-secondary-navigation-source-autopilot.htmlTue, 04 Aug 2026 09:00:00 +1000What autopilot-agnostic really means, how an EKF blends position sources, how failover should behave, and the testing you should do before trusting it.https://aerospace.bizix.com.au/blog/infrastructure-inspection-gps-hostile-environments.htmlhttps://aerospace.bizix.com.au/blog/infrastructure-inspection-gps-hostile-environments.htmlTue, 23 Jun 2026 09:00:00 +1000Bridges, urban canyons, pipelines and power lines all degrade GPS in different ways. How mixed-coverage inspection missions can keep their position.https://aerospace.bizix.com.au/blog/agricultural-drone-missions-without-gps.htmlhttps://aerospace.bizix.com.au/blog/agricultural-drone-missions-without-gps.htmlTue, 19 May 2026 09:00:00 +1000Long 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.https://aerospace.bizix.com.au/blog/choosing-hardware-onboard-uav-navigation.htmlhttps://aerospace.bizix.com.au/blog/choosing-hardware-onboard-uav-navigation.htmlTue, 21 Apr 2026 09:00:00 +1000What 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.https://aerospace.bizix.com.au/blog/how-terrain-referenced-navigation-works.htmlhttps://aerospace.bizix.com.au/blog/how-terrain-referenced-navigation-works.htmlTue, 17 Mar 2026 09:00:00 +1000A plain-language walk through terrain-referenced navigation: what the aircraft senses, what it compares against, and why absolute position beats drift.https://aerospace.bizix.com.au/blog/gps-denied-navigation-explained.htmlhttps://aerospace.bizix.com.au/blog/gps-denied-navigation-explained.htmlWed, 18 Feb 2026 09:00:00 +1000GPS signals can be jammed, spoofed, or simply unavailable. Here is what that means for drone operators and what the alternatives look like.https://aerospace.bizix.com.au/blog/bvlos-operations-australia.htmlhttps://aerospace.bizix.com.au/blog/bvlos-operations-australia.htmlSat, 14 Feb 2026 09:00:00 +1000How GPS-independent navigation strengthens BVLOS applications under Australia's evolving regulatory framework.https://aerospace.bizix.com.au/blog/terrain-slam-vs-traditional-gps.htmlhttps://aerospace.bizix.com.au/blog/terrain-slam-vs-traditional-gps.htmlTue, 10 Feb 2026 09:00:00 +1000A practical comparison of satellite-based and terrain-based navigation — and why the best answer is often both.https://aerospace.bizix.com.au/blog/mining-drone-inspection.htmlhttps://aerospace.bizix.com.au/blog/mining-drone-inspection.htmlThu, 05 Feb 2026 09:00:00 +1000Why GPS signals degrade in mining environments and how terrain-based navigation provides reliable positioning where it matters most.https://aerospace.bizix.com.au/blog/defence-electronic-warfare.htmlhttps://aerospace.bizix.com.au/blog/defence-electronic-warfare.htmlWed, 28 Jan 2026 09:00:00 +1000GPS denial is a standard tactic in modern electronic warfare. How can unmanned systems maintain navigation in contested environments?