Method to improve probability of detection in dynamic scenarios in coherent LIDAR systems
US11163062B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2021 |
| Grant date | Nov 2, 2021 |
| Priority date | — |
| Expiry date | Jun 1, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/931
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of compensating for phase impairments in a light detection and ranging (LIDAR) system includes transmitting a first optical beam towards a target; and receiving a second optical beam from the target to produce a return signal. The method also includes generating a digitally-sampled target signal using a local oscillator (LO) beam, a first photo-detector, and the return signal; and compensating for ego-velocity and target velocity in the digitally-sampled target signal based on an estimated ego-velocity and estimated target velocity. The method also includes performing a phase impairment correction on the digitally-sampled target signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.