Effects of solar noise on the detection range performance of a laser spot tracker

Abstract

The effects of solar spectral irradiance on the performance of laser spot tracker are analyzed. When the entrance pupil diameter of the receiver increases, the field of view decreases, but the detection range increases. If the angle between the receiver and transmitter and target increases from 0 deg to 60 deg, the detection range decreases by approximately 23%. Due to solar noise's effects caused by solar spectral irradiance, the detection range decreases by approximately 33% during the day, more than during the night, and the laser spot tracker's altitude decreases by approximately 13% at 2000 m, more than at 0 m. When the solar intensity's variation increases from 1% to 5%, the detection range decreases by 54%.

High-precision detection of laser spot based on Gaussian spot model

“…As long as the correction of the same position of the forward and backward strokes is added, the calculation result of the reverse stroke in this method can reach 0.1 pixel. Therefore, compared with the other two algorithms, the algorithm in this paper has higher accuracy (positive stroke measurement results are more reliable) [9][10].…”

Analysis of optimal detection range performance of LiDAR systems applying coaxial optics

“…Concerning scanning performance, a 1550-nm laser beam is not only more effective than a 905-nm laser beam for atmospheric transmission and solar noise but also safer for the eyes [ 11 , 12 , 13 ]. Among various laser sources, a fiber laser can improve the detection range of a LiDAR because it can obtain a peak power of several kilowatts higher than that of a laser diode.…”