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Dynamic Indoor Localization Using Maximum Likelihood Particle Filtering

delete2021-02-05
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OA
AI
W
Wenxu Wang
D
Damián Marelli *
M
Minyue Fu
DOI:10.3390/s21041090delete
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Abstract

Abstract

En 中文
A popular approach for solving the indoor dynamic localization problem based on WiFi measurements consists of using particle filtering. However, a drawback of this approach is that a very large number of particles are needed to achieve accurate results in real environments. The reason for this drawback is that, in this particular application, classical particle filtering wastes many unnecessary particles. To remedy this, we propose a novel particle filtering method which we call maximum likelihood particle filter (MLPF). The essential idea consists of combining the particle prediction and update steps into a single one in which all particles are efficiently used. This drastically reduces the number of particles, leading to numerically feasible algorithms with high accuracy. We provide experimental results, using real data, confirming our claim.
Keywords:
indoor tracking
particle filter
channel state information
WiFi fingerprinting
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Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.

Journal

Sensors cover
Sensors
IF:
3.5
Papers:
7.2W
Citations:
20.9W

Organization

G
guangdong university of technology
Scholars:
3.0W
Papers: 2.0W
Citations: 36
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