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Sensors, Volume 21, Issue 16

August-2 2021 - 425 articles

Cover Story: The aim of this study is to compensate the user’s body shadowing effect on the received signal strength indicator to improve fingerprinting-based indoor localization performance with a chest-mounted wearable device. The online phase performs additional tasks compared to the conventional fingerprinting methods to mitigate user’s BSE. Firstly, it estimates the angle between a wearable device and the reference nodes considering the user’s orientation. The idea of landmark graph along with arctangent function is used for angle estimation. To detect a landmark, an IMU-aided decision tree-based motion mode classifier is implemented. Then, a BSE compensation model is used to correct the RSSIs of the query fingerprint. Finally, the k-nearest neighbor algorithm is employed to calculate the location of an unknown target. View this paper.
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Articles (425)

  • Article
  • Open Access
8 Citations
3,760 Views
14 Pages

Polymer–Plasticizer Coatings for BTEX Detection Using Quartz Crystal Microbalance

  • Abhijeet Iyer,
  • Veselinka Mitevska,
  • Jonathan Samuelson,
  • Scott Campbell and
  • Venkat R. Bhethanabotla

23 August 2021

Sensing films based on polymer–plasticizer coatings have been developed to detect volatile organic compounds (VOCs) in the atmosphere at low concentrations (ppm) using quartz crystal microbalances (QCMs). Of particular interest in this work are the V...

  • Article
  • Open Access
4 Citations
3,177 Views
17 Pages

23 August 2021

In this paper, we propose the method to standardize acoustic frequencies for underwater wireless acoustic sensor networks (UWASNs) by applying the channel raster used in the terrestrial mobile communications. The standardization process includes: (1)...

  • Article
  • Open Access
6 Citations
3,862 Views
18 Pages

23 August 2021

Point cloud data is essential measurement information that has facilitated an extended functionality horizon for urban mobility. While 3D lidar and image-depth sensors are superior in implementing mapping and localization, sense and avoidance, and co...

  • Article
  • Open Access
5 Citations
7,193 Views
31 Pages

An Analysis of Android Malware Classification Services

  • Mohammed Rashed and
  • Guillermo Suarez-Tangil

23 August 2021

The increasing number of Android malware forced antivirus (AV) companies to rely on automated classification techniques to determine the family and class of suspicious samples. The research community relies heavily on such labels to carry out prevale...

  • Article
  • Open Access
15 Citations
3,985 Views
27 Pages

23 August 2021

In the context of active-sensing guided-wave-based acousto-ultrasound structural health monitoring, environmental and operational variability poses a considerable challenge in the damage diagnosis process as they may mask the presence of damage. In t...

  • Article
  • Open Access
10 Citations
2,956 Views
21 Pages

23 August 2021

In aerial refueling, there exists deformation of the circular feature on the drogue’s stabilizing umbrella to a certain extent, which causes the problem of duality of position estimation by a single circular feature. In this paper, a monocular visual...

  • Article
  • Open Access
6 Citations
5,190 Views
34 Pages

A DSL-Based Approach for Detecting Activities of Daily Living by Means of the AGGIR Variables

  • José Manuel Negrete Ramírez,
  • Philippe Roose,
  • Marc Dalmau,
  • Yudith Cardinale and
  • Edgar Silva

23 August 2021

In this paper, we propose a framework for studying the AGGIR (Autonomie Gérontologique et Groupe Iso Ressources—Autonomy Gerontology Iso-Resources Groups) grid model, with the aim of assessing the level of independence of elderly people in accordance...

  • Article
  • Open Access
8 Citations
3,465 Views
17 Pages

23 August 2021

The knowledge of the exact position and orientation of a sensor with respect to a source (distribution) is essential for the correct solution of inverse problems. Especially when measuring with magnetic field sensors, the positions and orientations o...

  • Article
  • Open Access
16 Citations
4,878 Views
16 Pages

Point Cloud Hand–Object Segmentation Using Multimodal Imaging with Thermal and Color Data for Safe Robotic Object Handover

  • Yan Zhang,
  • Steffen Müller,
  • Benedict Stephan,
  • Horst-Michael Gross and
  • Gunther Notni

23 August 2021

This paper presents an application of neural networks operating on multimodal 3D data (3D point cloud, RGB, thermal) to effectively and precisely segment human hands and objects held in hand to realize a safe human–robot object handover. We discuss t...

  • Article
  • Open Access
98 Citations
15,646 Views
17 Pages

An Approach to Integrating Sentiment Analysis into Recommender Systems

  • Cach N. Dang,
  • María N. Moreno-García and
  • Fernando De la Prieta

23 August 2021

Recommender systems have been applied in a wide range of domains such as e-commerce, media, banking, and utilities. This kind of system provides personalized suggestions based on large amounts of data to increase user satisfaction. These suggestions...

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Sensors - ISSN 1424-8220