Title :
An extension of augmented Lagrange multiplier method for remote sensing inversion
Author :
Yan, Guangjian ; Wang, Jindi ; Ziti Hao ; Li, Xiaowen
Author_Institution :
Res. Center for Remote Sensing, Beijing Normal Univ., China
Abstract :
Remote sensing inversions are often typical constrained optimization problems. Based on the analysis of the current algorithms´ applicability in the field of remote sensing, we propose an extended augmented Lagrange multiplier method with improved rate-of-convergence and a less ill-posed problem. This method is developed on the new concept of a penalty matrix. Through detailed simulation and inversion, it is clear from the statistical analysis that the rate-of-convergence has been improved by about 30 percent compared with the original penalty factor based method but with similar accuracies. Furthermore, it is also found that our extended method is resistant to ill-posed problems
Keywords :
remote sensing; stochastic processes; augmented Lagrange multiplier method extension; constrained optimization problems; ill-posed problems; penalty factor based method; penalty matrix; rate-of-convergence; remote sensing inversion; simulation; statistical analysis; Algorithm design and analysis; Constraint optimization; Constraint theory; Cost function; Drag; Geographic Information Systems; Lagrangian functions; Least squares methods; Optimization methods; Remote sensing;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-7031-7
DOI :
10.1109/IGARSS.2001.978015