| Title |
The Analysis of Tracking Sensor Performance for Laser Guidance with Optical Filter Properties |
| Authors |
정보희(Bo Hee Jung) ; 공현배(Hyun Bae Kong) ; 이은정(Eun Jung Lee) ; 강원석(Won Seok Kang) ; 손성덕(Sung Deok Son) ; 이승태(Seungtae Lee) ; 지호진(Ho Jin Jhee) |
| DOI |
https://doi.org/10.5573/ieie.2024.61.11.180 |
| Keywords |
Laser sensor; Laser spot tracking; Laser guidance; Optical filter; Quadrant detector |
| Abstract |
This study investigates the impact of optical filters, designed to block noise light except for the target signal band, on the performance of laser-guided tracking sensors. The measurements revealed that increasing the angle of incidence alters the filter’s band characteristics, leading to reduced transmission at 1064 nm beyond a certain angle. This reduced transmission enhances multiple reflection signals within the system. Applying a narrow optical filter bandwidth improves external noise rejection but narrows the field of view and increases internal reflections, which diminishes tracking accuracy. These effects were confirmed through computational simulations. The results suggest that optical filter application in laser tracking sensors requires a balanced consideration of noise reduction, detection range, field of view, and angular accuracy. |