System and method for robust estimation and tracking the fundamental frequency of pseudo periodic signals in the presence of noise
US8949118B2 · kind B2 · utility
7Cited by
5References
19Claims
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Key dates
| Filing date | Mar 19, 2012 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | Jan 5, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2025/906
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Method and system for tracking fundamental frequencies of pseudo-periodic signals in the presence of noise that include receiving a time-frequency representation of signals measured in a predefined environment; estimating and tracking a fundamental frequency of a respective pseudo-periodic signal at each time frame of the time-frequency representation by tracking detections of harmonious frequencies in the time-frequency representation over time; and outputting each respective estimated fundamental frequency associated with the pseudo-periodic signal of each respective time frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.