Radar device and method of determining phase difference folding
US10466347B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2017 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Dec 29, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/4454
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There is provided a radar device. A transmission unit includes a transmission antenna for transmitting a signal of a first frequency and a signal of a second frequency. A reception unit includes a first receiving antenna and a second receiving antenna for receiving a first signal obtained by bouncing the signal of the first frequency off a target, and a second signal obtained by bouncing the signal of the second frequency off the target. A control unit determines folding of a first phase difference, based on the first phase difference between the first signal received by the first receiving antenna and the first signal received by the second receiving antenna, a second phase difference between the second signal received by the first receiving antenna and the second signal received by the second receiving antenna, and a difference between the first phase difference and the second phase difference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.