Antenna selection in a radar system based on multiple detected objects and multi-step planning
US11796666B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2021 |
| Grant date | Oct 24, 2023 |
| Priority date | — |
| Expiry date | Jan 1, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2013/0254
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A radar system includes antenna elements and receive channels. An adaptive switch couples the receive channels to a subset of the antenna elements as selected antenna elements. The selected antenna elements receive reflected signals from reflection by objects and each of the receive channels outputs the digital signal based on the reflected signal from the coupled selected antenna element. A controller processes the digital signal from each receive channel to estimate a direction of arrival (DOA) to each object and generate candidate configurations of the switch. Assessing the candidate configurations includes performing a multi-step assessment using a decision tree with each candidate configuration as a root and examining accuracy of an output at a last step in the decision tree to select a selected candidate configuration based on the accuracy. The switch is configured according to the selected candidate configuration prior to receiving the reflected signals for a next iteration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.