High-precision laser spot center positioning method for weak light conditions
Ruihong Gao, Heshan Liu, Ya Zhao, Ziren Luo, Gang Jin
Abstract
In the acquisition stage of many space applications, such as the Taiji program, the spot center of weak laser light must be accurately determined. Under weak light conditions, the precision of most traditional positioning methods is greatly affected. In this paper, we present a high-precision laser spot center positioning method based on the theoretical analysis of influence factors of precision. It is shown through experimental study that the method's precision can fulfill the requirement of the Taiji program.
Topics & Concepts
OpticsLaserLaser lightAccuracy and precisionCenter (category theory)Light intensityStray lightComputer sciencePhysicsQuantum mechanicsChemistryCrystallographyAstronomical Observations and InstrumentationOptical Systems and Laser TechnologyAdaptive optics and wavefront sensing