Method for correcting measuring errors of long-distance scanning laser radar
US10746857B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 8, 2018 |
| Grant date | Aug 18, 2020 |
| Priority date | — |
| Expiry date | Jan 11, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/42
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a method for correcting measuring errors of a long-distance scanning laser radar, comprising: S1, establishing a measuring model and acquiring a positional relationship between a measured point and a coordinate origin; S2, acquiring an actual positional relationship between the measured point and a laser radar and establishing error models of three major error sources; S3, performing a sub-parameter measuring experiment on the laser radar to acquire major sample data of the three major error sources; S4, analyzing probability density distribution of the three major error sources with a statistical method to obtain error correction samples of the three major error sources in a three-dimensional coordinate system; S5, acquiring three-dimensional coordinate samples according to the error correction samples of the three major error sources and the measuring model; and S6, correcting a three-dimensional coordinate measuring point in real time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.