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\section{Overview}  This document presents a parametric model to help design an Interferometric Array. It describes therelationship of  design parameters in section 2 with and the system  performance objectives in section 3.   In particular, this document provides an explanation of the design parameters 3,  andobjectives the array might have. These explanations enable the reader to both assess completeness of  the model, and accuracy of the mathematical relationships as well. relationship between them.  Section 4 provides the python code used to generate data in the format required for visual analysis of array design options performance. The python code is consistent with parameters and objectives selection in sections 2 and 3, and the mathematical relationships between them.  \section{Variables}  This section aims to include all relevant design parameters that might influence the selected performance objectives in section 4. 
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