Robust Signal Processing in Distributed Sensor Networks (2019)
Abstract / truncated to 115 words
Statistical robustness and collaborative inference in a distributed sensor network are two challenging requirements posed on many modern signal processing applications. This dissertation aims at solving these tasks jointly by providing generic algorithms that are applicable to a wide variety of real-world problems. The first part of the thesis is concerned with sequential detection---a branch of detection theory that is focused on decision-making based on as few measurements as possible. After reviewing some fundamental concepts of statistical hypothesis testing, a general formulation of the Consensus+Innovations Sequential Probability Ratio Test for sequential binary hypothesis testing in distributed networks is derived. In a next step, multiple robust versions of the algorithm based on two different robustification paradigms ... toggle 9 keywordssignal processing – robustness – distributed sensor networks – sequential detection – sequential hypothesis testing – dempster-shafer theory – multi-target tracking – phd filter – particle filter
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