Accurate reconstruction of frequency-sparse signals with arbitrary frequencies from non-uniform samples
US9064136B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2013 |
| Grant date | Jun 23, 2015 |
| Priority date | — |
| Expiry date | Dec 21, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M7/3062
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Described is a method for accurately reconstructing analog signals. The present invention considers a general parameter estimation problem, extends the utility of compressive sensing to real scenarios, and is able to accurately estimate center frequencies and amplitudes. Specifically, an unknown continuous analog signal comprising a set of arbitrary frequencies and amplitudes is received. A set of non-uniform samples of the unknown continuous analog signal is then obtained at multiple times. Finally, an iterative reconstruction process is utilized to determine a set of frequencies and a set of amplitudes that best fit the set of non-uniform samples in a global minimum problem in order to accurately reconstruct the continuous analog signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.