Low complexity super-resolution technique for object detection in frequency modulation continuous wave radar
US10613208B2 · kind B2 · utility
4Cited by
4References
10Claims
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Key dates
| Filing date | Nov 24, 2015 |
| Grant date | Apr 7, 2020 |
| Priority date | — |
| Expiry date | Jan 9, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/343
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In the proposed low complexity technique a hierarchical approach is created. An initial FFT based detection and range estimation gives a coarse range estimate of a group of objects within the Rayleigh limit or with varying sizes resulting from widely varying reflection strengths. For each group of detected peaks, demodulate the input to near DC, filter out other peaks (or other object groups) and decimate the signal to reduce the data size. Then perform super-resolution methods on this limited data size. The resulting distance estimations provide distance relative to the coarse estimation from the FFT processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.