Angle-Doppler Keystone formatting for airborne look-down radar system
US11592546B1 · kind B1 · utility
0Cited by
15References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2019 |
| Grant date | Feb 28, 2023 |
| Priority date | — |
| Expiry date | Dec 14, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2013/0245
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An airborne radar system and signal interpretation approach that detects slow moving ground targets using angle and Doppler of Keystone formatting process, and is referred to as Angle-Doppler Keystone Formatting (ADK). ADK collapses the clutter ridge to a constant Doppler or to a constant angle, thereby transforming a clutter ridge in angle-Doppler space into a horizontal line of constant Doppler or a vertical line of constant angle. Clutter may then be filtered more effectively, such as by using multiple beams as the source of STAP training data or by using multiple Doppler bins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.