Method for operating a testing device for testing a distance sensor operating with electromagnetic waves, and corresponding testing device
US12000956B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Dec 28, 2019 |
| Grant date | Jun 4, 2024 |
| Priority date | — |
| Expiry date | Nov 13, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2013/9323
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for testing a distance sensor includes: receiving an electromagnetic free-space wave as a receive signal; generating a simulated electromagnetic reflection signal therefrom; shifting a reflection frequency of the reflection signal by a Doppler frequency smaller than a signal bandwidth of the receive signal; converting the receive signal into a first work signal having a first work frequency smaller than a receive frequency of the receive signal; converting the first work signal into a second work signal having a second work frequency, wherein the difference between the first and second work frequencies is at least as large as the signal bandwidth plus the Doppler frequency; converting the second work signal into a third work signal having a third work frequency that corresponds to the first work frequency shifted by the Doppler frequency; increasing the third work signal by the conversion frequency; and radiating the third work signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.