Likely the Western market leader in directional acoustic arrays. Discovair G2+: passive, 105° azimuth per sensor, four sensors form 360° coverage. Operates by triggering high-resolution acoustic beams in any sector that registers change. Used by allied forces in conflict zones, deployed at Falcon Peak (NORTHCOM C-sUAS exercises), demonstrated at marathons / motorsports / borders.
| Country | Norway |
|---|---|
| Subcategory | Passive acoustic |
| Price | ~£25k+ per unit (est.) |
| Subtype | Acoustic sensor |
| Form factor | 105°/unit · 4 = 360° |
| SWaP | Small SWaP; body-worn-display capable |
| Sensor modality | Directional acoustic array |
| Type | Microphone array |
| Notable partners | Integration partner DroneShield; tested by Norwegian Armed Forces, FFI, Polish Armed Forces (Eastern Shield); USSOCOM/Liberty Alliance experimentation |
| Mounting | Fixed/mast, Tripod/portable, Vehicle, Backpack |
| Coverage | 360° |
| Price band | Quote-based |
| Output data | Bearing/AoA, Classification, Track ID |
| Update rate | Continuous; beams trigger on change |
| Array config | 128 digital microphones; 105 deg directional or 360 deg hemispheric |
| DoA accuracy | <10 deg |
| Active/Passive | Passive |
| Frequency range | 200 Hz - 20 kHz |
| Localisation mode | Hemispheric |
| Detection range (km) | 0.5 |
| Detection range (km) | 0.5 |
| Integration interfaces | Browser UI or M2M API; slew-to-cue |
| Noise tolerance / SNR | Filters background noise for near-zero false positives |
| Signature library / classification | ML on propeller sound; Class I/II drones; near-zero false positives |