Abstract
The Maximum Likelihood technique using a Multipath Propagation model (MLMP) has been developed for maritime tracking radars operating against low-altitude targets. We use a detailed propagation model in the MLMP technique to improve the accuracy of maximum likelihood (ML) estimators. A problem with this technique is the occurrence of ambiguities in the estimation of target height. This paper evaluates possible solutions. Using Monte-Carlo simulations, we demonstrate that a significant performance improvement can be obtained with an appropriate choice of radar frequencies and bandwidths.
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