Calibration method of three-dimensional plane array laser radar based on space-time transformation.
Appl Opt
; 59(28): 8595-8602, 2020 Oct 01.
Article
em En
| MEDLINE
| ID: mdl-33104539
ABSTRACT
As a measurement system that can realize target detection and optical imaging, the accuracy of three-dimensional laser radar is a main performance index, which makes calibration an extremely important work. Traditional calibration methods have many disadvantages, such as harsh environment requirements, complex and tedious calibration processes, and inaccurate calibration results. To solve these problems, we propose a calibration method so that the relative position of the cooperative target and the detection sensor is fixed. The principle of space-time transform is used to simulate distance, and the synchronous control of distance is realized by controlling the delay module. In addition, a simple and practical calibration device is designed. In the actual measurement, the average absolute error is 0.0019 m, and the relative error is 0.0678% in the range of 0.5-25 m. The experimental results show that this method is stable and accurate, and it can calibrate the plane array laser radar quickly and accurately.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Tipo de estudo:
Prognostic_studies
Idioma:
En
Revista:
Appl Opt
Ano de publicação:
2020
Tipo de documento:
Article