|"Wireless Paint": Code Design for 3D Orientation Estimation with Backscatter Arrays
|Kenneth Chang, University of California, Los Angeles, United States; Nathaniel Raymondi, Ashutosh Sabharwal, Rice University, United States; Suhas Diggavi, University of California, Los Angeles, United States
|E.4: Estimation and Applications
|Detection and Estimation
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|In this paper, we consider the problem of estimating the orientation of an object that has been custom-"painted" by an array of backscatter tags. We pose the problem as a coding matrix design with the objective of minimizing orientation estimation error. We show that it is only necessary to consider a subset of code configurations and provide a tractable linear program to find the optimal coding strategy. We provide simulation results using an icosahedral tag arrangement.