Vertical take-off and landing (VTOL) aircraft noise signature mitigation
US10960975B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Feb 14, 2019 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | Oct 4, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K2210/30231
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Vertical take-off and landing (VTOL) aircraft can provide opportunities to incorporate aerial transportation into transportation networks for cities and metropolitan areas. However, VTOL aircraft may be noisy. To accommodate this, the aircraft may utilize onboard sensors, offboard sensing, network, and predictive temporal data for noise signature mitigation. By building a composite understanding of real data offboard the aircraft, the aircraft can make adjustments to the way it is flying and verify this against a predicted noise signature (via computational methods) to reduce environmental impact. This might be realized via a change in translative speed, propeller speed, or choices in propulsor usage (e.g., a quiet propulsor vs. a high thrust, noisier propulsor). These noise mitigation actions may also be decided at the network level rather than the vehicle level to balance concerns across a city and relieve computing constraints on the aircraft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.