期刊论文

中文

大地测量与地球动力学

1671-5942

2023

43

06

587-592

10.14075/j.jgg.2023.06.007

41674009:国家自然科学基金 41574005:国家自然科学基金

本校为其他机构

由于Tikhonov正则化(Tikhonov regularization,TR)法求解大地测量领域中的病态问题时,其求解质量过于依赖正则化参数的确定,且稳定性较差,因此提出改进的迭代Tikhonov正则化(iterat...展开更多 由于Tikhonov正则化(Tikhonov regularization,TR)法求解大地测量领域中的病态问题时,其求解质量过于依赖正则化参数的确定,且稳定性较差,因此提出改进的迭代Tikhonov正则化(iterated Tikhonov regularization,ITR)法,结合广义交叉验证法(generalized cross-validation,GCV),可以有效克服上述缺点。算例结果表明,ITR-GCV法在解算精度、稳定性以及抗干扰性方面表现良好。收起

Since the quality of the solution of the Tikhonov regularization(TR)method is too dependent on the determination of the regularization parameters and less stable when solving ill-conditioned problems in the field of geodesy by TR method,an improved iterated Tikhonov reg...MORE Since the quality of the solution of the Tikhonov regularization(TR)method is too dependent on the determination of the regularization parameters and less stable when solving ill-conditioned problems in the field of geodesy by TR method,an improved iterated Tikhonov regularization(ITR),combined with generalized cross-val...