Indoor Localization System: Single-Microphone Approach

  • 張 培鈺

Student thesis: Master's Thesis

Abstract

Three microphone-based indoor localization designs developed by combining novel estimation designs and tag sound sources which are with distinct frequencies are proposed in this thesis From the experiments in practice results summarized a key point for achieving a satisfactory indoor localization: an accurate estimation of the instantaneous sound pressure level (SPL) that is inevitably affected by the random variation of environmental corruptions dominated the indoor localization performance Based on this concept three algorithms including Kalman filter based design H2 estimation design and H∞ estimation design which accompany with a sound pressure level model are developed for effectively mitigating the effects of received signal strength (RSS) variations due to the reverberation the reflection refraction and so on From the simulation results and practical experiments it is obvious that these proposed methods deliver really promising localization performance even under heavy environmental corruptions The physical characteristics of the proposed methods include: 1 High indoor localization accuracy 2 Robustness to complicated and unpredictable environmental corruptions and 3 Low cost designs
Date of Award2016 Aug 30
Original languageEnglish
SupervisorYung-Yu Chen (Supervisor)

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