The phenomenon of loss of lock in tracking systems is ubiquitous in engineering practice. However, the key problem of loss of lock in non-causal estimation or smoothing is a marked exception in this well researched area. The methods that were developed for the treatment of the former are not suitable for the analysis of the latter problem. The main purpose of this research is to provide the missing theory and investigate the phenomenon of loss of lock in smoothers. We concentrate in this dissertation on the carrier phase estimation problem, a benchmark problem in nonlinear...
The phenomenon of loss of lock in tracking systems is ubiquitous in engineering practice. However, the key problem of loss of lock in non-ca...