System and method for comparing signals
US6622118B1 · kind B1 · utility
13Cited by
8References
60Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2001 |
| Grant date | Sep 16, 2003 |
| Priority date | — |
| Expiry date | Oct 13, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/904
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and system that include a first measurement signal and a second measurement signal that can be input to first and second filters. The filters can be subject to a first constraint to minimize the energy difference between the first and second measurement signals on a per frequency basis, and subject to a second constraint that includes a model frequency and phase response. By adapting the filters subject to the two constraints, coherent differences between the two measurement signals can be identified. In one embodiment, the system can be applied to Synthetic Aperture Radar (SAR) data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.