Satellite laser altimeter pointing and ranging calibration algorithm based on simulated annealing

Xu Wang; Huan Xie; Qi Xu; Binbin Li; Shijie Liu; Xiaohua Tong

doi:10.1117/12.2587287

2 December 2020 Satellite laser altimeter pointing and ranging calibration algorithm based on simulated annealing

Xu Wang, Huan Xie, Qi Xu, Binbin Li, Shijie Liu, Xiaohua Tong

Proceedings Volume 11717, 24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics; 117172C (2020) https://doi.org/10.1117/12.2587287
Event: 24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics, 2020, Shanghai, China

Abstract

The satellite laser altimeter requires high-precision on-orbit geometric calibration to ensure the accuracy of the laser altimeter data. However, the calibration method based on undulating terrain may have multiple solutions under complex terrain, which means that the calibration parameters may converge to the local optimal solution. In order to solve the problem, a satellite laser altimeter pointing and ranging calibration algorithm based on simulated annealing is proposed, which can reduce the possibility of the calibration parameters to converge to the local optimal solution. In 10 sets of comparative experiments, there are 2 sets of result converging to the local optimal solution using algorithm based on Monte-Carlo simulation, while all sets of result converge to the global optimal solution using algorithm based on simulated annealing. After calibration with the proposed algorithm, the average of elevation error decreased from about 9.1m to within 3m, and standard error decreased from about 1m to about 0.5m. The results show that the calibration algorithm based on simulated annealing can effectively prevent the calibration parameters from converging to the local optimal solution, and can effectively improve the accuracy of laser altimeter data.

Citation Download Citation

Xu Wang, Huan Xie, Qi Xu, Binbin Li, Shijie Liu, and Xiaohua Tong "Satellite laser altimeter pointing and ranging calibration algorithm based on simulated annealing", Proc. SPIE 11717, 24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics, 117172C (2 December 2020); https://doi.org/10.1117/12.2587287

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available