Drone Detection
A knowledge base on detecting unauthorized drones at critical infrastructure — power, water, emergency shelters, and secure facilities. Covers detection physics (micro-Doppler radar, RF, acoustic, optical), open-source tools, commercial hardware, and counter-drone-drone platforms.
Scope: Detection and classification systems usable today, with emphasis on drone-vs-bird discrimination and threats that assume no RF control link.
Topic Areas
- Detection Methods — Micro-Doppler radar, RF/Remote ID, acoustic, optical, and sensor fusion
- Threat Taxonomy — Classification of drone threats: surveillance, RF attack, fiber-optic FPV, autonomous, and swarms
- Regulatory Framework — US C-UAS legal landscape: who can detect, who can interdict, applicable statutes, CISA guidance
- International Remote ID Requirements — UK, EU, China, and Japan Remote ID mandates compared to the US standard
- Drone Privacy, Trespass, and Criminal Misuse Law — US, UK, German, and French law on drone spying, harassment, and vandalism; civil vs. criminal line; when to call police
- Property Owner Rights vs. Drone Operator Rules (US & UK) — FAA Part 107 / UK CAA altitude and distance rules for operators; hovering vs. perimeter flying; thermal/LIDAR sensing; the Causby/Ciraolo/Riley/Kyllo case law; whether ground-level altitude legalizes self-help capture
- Open Source Projects — OpenDroneID, DJI DroneID decoders, acoustic ML pipeline, and community tools
- Commercial Hardware — Dedrone, DroneShield, Fortem, D-Fend, Aaronia, Robin Radar, Marduk, AeroDefense, Sentrycs, Skydio
- Deployment Architecture — Design pattern for fixed-site C-UAS: sensor placement, integration, power/networking, maintenance
- Counter-Drone Platforms — Interceptor drones and kinetic/non-kinetic response
- High-Altitude Platforms (Airships & Balloons) — Stratospheric HAPS as persistent sensor platforms for drone/missile detection; Sceye, World View/Ondas, Aerostar, Urban Sky, TCOM, Hemeria/Safran, Kalam Labs
- MIMO Radar Projects — Multiple-Input Multiple-Output digital antenna-array radar for compact, high-resolution 3D/4D drone detection; Advanced Protection Systems, RADA/Leonardo DRS, Fraunhofer FHR, Vayyar Imaging, Uhnder
- Ukraine Lessons Learned — Battlefield results 2024–2026: what works, what doesn’t, kinetic/electronic/passive countermeasures
Companies
Startups & Development Partners
| Company | HQ | Stage | Mission |
|---|---|---|---|
| Allen Control Systems | USA | Series B ($200M, $2.2B, Jun 2026) | Bullfrog autonomous kinetic weapon station; M240/M2/M230/M134; SOCOM + Army contracts |
| Fortem Technologies | USA | Growth (Lockheed $25M, 2026) | Radar + AI + DroneHunter interceptor drone C-UAS system |
| D-Fend Solutions | Israel | Acquired (Motorola Solutions, reported ~$1.5B, 2026 — unconfirmed) | Cyber-takeover counter-drone for critical infrastructure |
| Aaronia AG | Germany | Private | RF spectrum monitoring-based drone detection (AARTOS) |
| Robin Radar Systems | Netherlands | Private (Parcom investment, 2024) | 3D micro-Doppler radar with bird/drone classification (IRIS) |
| Marduk Technologies | Estonia | Early | Passive electro-optical detection — counters RF-dark/fiber-optic threats |
| AeroDefense | USA | Private | AirWarden Remote ID receiver and RF sensor network |
| Dronetag | Czech Republic | Private | Remote ID hardware (BS base station receiver) |
| Sentrycs | Israel | Acquired (Ondas, Nov 2025) | Cyber-over-RF protocol manipulation — detect/ID/mitigate without jamming; 25+ countries |
| Skydio | USA | Growth (Series F, $4.4B) | Autonomous drone-in-a-box patrol; X10/X10D; AI anomaly detection; Blue UAS listed |
| Vigil Autonomy | USA | Early (founded Aug 2025) | CommonDefense multi-spectral benchmark dataset and perception infrastructure for C-UAS teams |
| Soundryx | USA | Early (founded Jan 2025) | Acoustic sensor network detecting drones, vehicles, and gunshots — anti-stealth, radar-independent |
| CRFS | UK | Acquired (Motorola Solutions, reported 2025–2026 — unconfirmed) | RFeye passive RF signal-hunting network; non-cooperative geolocation (AoA/TDoA/FDoA); integrated into L3Harris/Rafael systems |
| Sensofusion | Finland | Growth (€20.8M 2024 turnover reported) | Airfence passive RF drone + pilot locator; deployed commercially since 2016 |
| Tron Future Tech | Taiwan | Series A (2024) | AESA-based anti-drone stack (T.Radar/T.Sensor/T.Jammer/T.Cam/T.Meta) |
| Echodyne | USA | Growth (Series A led by Bill Gates/Madrona; scaling production 2026) | Miniaturized MESA/ESA radar embedded in Dedrone, defense integrators; $490M USAF SUADS contract |
| Sceye | USA | Growth (Series funding + NASA award, 2026) | Solar-powered stratospheric airship (HAPS); 12-day/6,400-mile flight test; see High-Altitude Platforms |
| Urban Sky | USA | Series B ($30M, Feb 2025) | Stratospheric Microballoon; AFRL STRATFI; Project Wallabee target-recognition test; see High-Altitude Platforms |
| Hemeria | France | Private (Safran MoU, Jun 2026) | BalMan maneuverable stratospheric balloon; Safran.AI-enabled ELINT/EW; see High-Altitude Platforms |
| Kalam Labs | India | Early (~$2M raised) | Balloon-launched stratospheric UAV; deployed at Pokhran/LAC; see High-Altitude Platforms |
| Advanced Protection Systems | Poland | Private | FIELDctrl 3D MIMO radar family for C-UAS/VSHORAD; see MIMO Radar |
| Vayyar Imaging | Israel | Private | XRR single-chip MIMO RFIC (48 transceivers); automotive + public-safety 4D imaging; see MIMO Radar |
| Uhnder | USA | Private | Digital Code Modulation MIMO radar-on-chip (up to 96 channels); automotive-focused enabling tech; see MIMO Radar |
Public Companies
| Ticker | Company | Mission |
|---|---|---|
| DRO | DroneShield | AI-powered C-UAS: RF, radar, acoustic, computer vision |
| AXON | Axon Enterprise (Dedrone) | Multi-sensor drone detection platform (acquired Dedrone Oct 2024) |
| ONDS | Ondas Holdings | Parent of Sentrycs (CoRF C-UAS), Iron Drone Raider interceptor, and (2026) World View Stratollite stratospheric ISR — see High-Altitude Platforms |
Incumbents
| Ticker | Company | Relevance |
|---|---|---|
| LMT | Lockheed Martin | $25M investment in Fortem Technologies (Apr 2026); own C-UAS programs |
| RTX | RTX | Coyote interceptor drone program; C-UAS integration |
| — (state-owned) | Rafael Advanced Defense Systems | Hunter Eagle / Ghost Hunter kinetic interceptors; Drone Dome C-UAS (integrates CRFS RFeye) |
| — (private) | TCOM, L.P. | Tethered aerostat radar for cruise-missile/drone detection; direct commercial descendant of JLENS — see High-Altitude Platforms |
| — (division of Raven/CNH) | Aerostar | Stratospheric balloons/airships flying Army HELIOS/HAP-DS experimentation; Airbus U.S. partnership — see High-Altitude Platforms |
| DRS | Leonardo DRS (RADA) | Multi-Mission Hemispheric Radar (MHR) digital MIMO 4D AESA family; RPS-82 integrated into DroneShield DroneSentry — see MIMO Radar |
| — (research institute) | Fraunhofer FHR | German MIMO radar drone-detection research; AKIRA urban drone-monitoring network — see MIMO Radar |