RF radar device BIST using secondary modulation
US10097287B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2017 |
| Grant date | Oct 9, 2018 |
| Priority date | — |
| Expiry date | Sep 7, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/356
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Embodiments are provided for a radar device and a method of operating a radar device, the radar device having a transmitter and a receiver, the method including: generating a chirp signal based on a local oscillator (LO) signal, wherein the LO signal is a frequency-modulated continuous-wave (FMCW) signal; secondary modulating the chirp signal to produce an output signal; transmitting the output signal on a transmitting antenna of the radar device; receiving an echo signal on a receiving antenna of the radar device; downmixing an amplified version of the echo signal with the LO signal to produce a low frequency signal; and outputting an error detection signal based on spectral components of the low frequency signal, wherein the spectral components correspond to the secondary modulating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.