System and method of hypersonic object tracking
US12078716B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 31, 2020 |
| Grant date | Sep 3, 2024 |
| Priority date | — |
| Expiry date | Aug 10, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/0294
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method of tracking a hypersonic object over a flightpath includes at least one observer having at least one sensor. The sensor is configured to provide measurements of the hypersonic object that are geometrically diverse such that each observer may independently measure any combination of range, angles, Doppler, and angle rates. The observers transmit measurements to a processing unit as the hypersonic object undergoes three phases including a boost phase, a ballistic phase, and a hypersonic glide phase. The hypersonic object is tracked over many time steps by first selecting a dynamics model representative of expected object kinematics during said phase. Then, an unscented Kalman filter is used to predict a future state and a covariance using the dynamics model that was selected. Finally, the unscented Kalman filter updates the future state and covariance that were predicted based on the geometrically diverse measurements of the sensors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.