Unmanned Systems https://unmanned-systems.org Independent coverage of unmanned systems across air, ground, sea, and the technologies connecting them. en-us Mon, 31 Aug 2026 12:00:00 GMT Detect and Avoid for Civil Drones: A Practical Guide to DAA Architecture https://unmanned-systems.org/articles/detect-and-avoid-for-civil-drones/ https://unmanned-systems.org/articles/detect-and-avoid-for-civil-drones/ How civil drone teams can compare cooperative surveillance, radar, optical, acoustic, ground-based, and hybrid detect-and-avoid architectures. Unmanned Systems Editorial Mon, 31 Aug 2026 12:00:00 GMT GNSS-Denied Navigation for Unmanned Aircraft: What Replaces GPS? https://unmanned-systems.org/articles/gnss-denied-navigation-for-unmanned-aircraft/ https://unmanned-systems.org/articles/gnss-denied-navigation-for-unmanned-aircraft/ GNSS-denied aircraft do not replace GPS with one sensor. Learn how inertial, visual, terrain, radio, and integrity layers form a resilient navigation stack. Unmanned Systems Editorial Mon, 31 Aug 2026 12:00:00 GMT ROV vs. AUV vs. Underwater Glider: Choosing the Right Platform https://unmanned-systems.org/articles/rov-vs-auv-vs-underwater-glider/ https://unmanned-systems.org/articles/rov-vs-auv-vs-underwater-glider/ Choose between an ROV, a powered AUV, and an underwater glider by matching control, endurance, payload, data, recovery, and support needs. Unmanned Systems Editorial Mon, 31 Aug 2026 12:00:00 GMT