LIDAR imaging system with FMCW type heterodyne detection comprising a device for correcting the phase of the reference signal
US12379498B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2021 |
| Grant date | Aug 5, 2025 |
| Priority date | — |
| Expiry date | Jun 5, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/894
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a LIDAR imaging system of the FMCW type, comprising a light source (10), an optical projection device (20), an optical transmission device (30), an optical imaging device (40), and a matrix photodetector (50). It further comprises a phase correction device (60) comprising a spatial phase modulator (61) for applying a corrected spatial phase distribution to the reference signal, and a computation unit (62) for determining the corrected spatial phase distribution, by taking into account a spatial distribution representing a spatial intensity distribution of the backscattered object signal, so that the reference signal has a corrected spatial intensity distribution in the reception plane optimizing a spatial distribution of a parameter of interest representing the heterodyne signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.