Bearings-only location using nonlinear least squares
Mo Longbin, Xu Yaowei, Zhou Yiyu, Sun Zhongkang · 2002
Bearings-only location is a nonlinear estimation problem. The maximum likelihood estimator (MLE) is usually used to obtain the optimal estimate. The MLE is realized by the Newton-Gauss iteration, which only has a local convergence. In this paper a new instrumental variables estimator is developed.