SADIE-improvements from in-service tuning [radar processor family]

SADIE is the name adopted by Racal for its modular radar ESM/ELINT processor family. It is an acronym for the processing architecture Segregation Association Deinterleaving and Identification of Emitters. This architecture has enabled modular evolution of the processing functions to suit different radar environments and applications. A major design motivator has been the ability to work with different receiver-digitiser architectures and accuracies as listed in a table. The paper briefly outlines the principles of the SADIE architecture, highlights its flexibility then describes some of the problems presented by real world corruptions of radar signals and the way the architecture is adapted, in differing roles, to overcome ambiguities created by these corruptions