Coded filter
US9007260B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2011 |
| Grant date | Apr 14, 2015 |
| Priority date | — |
| Expiry date | Mar 9, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/40
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for estimating and compensating for a broad class of non-Gaussian sensor and process noise. In one example, a coded filter combines a dynamic state estimator (for example, a Kalman filter) and a non-linear estimator to provide approximations of the non-Gaussian process and sensor noise associated with a dynamic system. These approximations are used by the dynamic state estimator to correct sensor measurements or to alter the dynamic model governing evolution of the system state. Examples of coded filters leverage compressive sensing techniques in combination with error models based on concepts of compressibility and the application of efficient convex optimization processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.