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Information sharing across supply chains: the Absolut truth

Purpose To explore demand related information sharing in a multi-tier supply chain and propose contingency factors that impact benefits of information sharing across three or more tiers. Design/methodology/approach Through an in-depth case study a range of methods are used to collect data from companies representing three different tiers, including focal company, 1st tier suppliers and 1st tier c

Array signal processing with non-ideal uniform circular arrays in correlated signal environments

The Davies transformation is a method to transform the steering vector of a uniform circular array (UCA) to one with Vandermonde form. As such, it allows techniques such as spatial smoothing for direction of arrival (DOA) estimation in a correlated signal environment, developed originally for uniform linear arrays, to be applied to UCAs. However, the Davies transformation can be highly sensitive t