Insect flight velocity measurement with a CW near-IR Scheimpflug lidar system.
Opt Express
; 28(15): 21891-21902, 2020 Jul 20.
Article
em En
| MEDLINE
| ID: mdl-32752461
ABSTRACT
Flight velocity measurement is an important aspect of insect research that can aid insect identification and facilitate studies and monitoring of insect movements. We propose a novel scheme for the 1-D flight velocity measurement of insects, based on a near-IR Scheimpflug lidar system. We implement this new technique and apply it to study insects at the Salter Research Farm, Robertson County, Texas. The resolution property perpendicular to the probing direction of the Scheimpflug lidar system is explored and reveals the capability of retrieving the velocity component normal to the probing direction of insects passing through the field of view of our system. We observe a shift in wingbeat frequency, which indicates the presence of new insect species during the multi-day measurement. The study on 1-D flight velocity reveals a net directional movement of insects, providing supportive evidence of the arrival of a new species.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Radar
/
Voo Animal
/
Insetos
/
Lasers
Tipo de estudo:
Prognostic_studies
Limite:
Animals
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article