Sensor Fusion and Statistical Signal Processing

A special issue of Signals (ISSN 2624-6120).

Deadline for manuscript submissions: closed (20 December 2021) | Viewed by 3531

Special Issue Editor

Special Issue Information

Dear Colleagues,

Sensor fusion and statistical signal processing play an essential role in modern daily life, due to the widespread diffusion of devices and technologies applied to Internet of Things technologies.

The application field concerns the localization, healthcare, autonomous vehicle, intelligent transportation system, home automation, industry, robotics, automated guided vehicles in manufacturing lines, first responder navigation, vehicular navigation, asset navigation and tracking, industry automation, indoor unmanned vehicle, etc.

Usually, the research is addressed to design and implement data fusion methods using the already available technologies or realize low-cost sensors. Sensor fusion and statistical signal processing are key elements for further advances in the field and present exciting challenges for signal processing practitioners and researchers.

Due to the large variety of technologies and standards involved, a data fusion algorithm typically needs to account for several technologies, such as filtering, Kalman, Bayesian filtering, system identification, communication channel models, machine learning, etc.

This Special Issue, entitled ‘Sensor Fusion and Statistical Signal Processing’, we solicit paper submissions of original works addressing fundamentals, supporting technologies, and technical issues on the data fusion of heterogeneous technologies. The topics not only cover design and analysis, but concern the realization and implementation of sensor fusion.

This Special Issue of Signals aims to publish novel results on the most recent developments in sensor fusion and statistical signal processing, emphasizing the integration of various technologies for improved performance.

Dr. Guido De Angelis
Guest Editor

Manuscript Submission Information

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Keywords

  • sensor fusion
  • Kalman filter
  • machine learning
  • sensors
  • signal processing algorithms
  • filtering
  • statistical signal processing

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Published Papers (1 paper)

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Research

16 pages, 751 KiB  
Article
Sensor-Based Prediction of Mental Effort during Learning from Physiological Data: A Longitudinal Case Study
by Ankita Agarwal, Josephine Graft, Noah Schroeder and William Romine
Signals 2021, 2(4), 886-901; https://doi.org/10.3390/signals2040051 - 3 Dec 2021
Cited by 3 | Viewed by 2526
Abstract
Trackers for activity and physical fitness have become ubiquitous. Although recent work has demonstrated significant relationships between mental effort and physiological data such as skin temperature, heart rate, and electrodermal activity, we have yet to demonstrate their efficacy for the forecasting of mental [...] Read more.
Trackers for activity and physical fitness have become ubiquitous. Although recent work has demonstrated significant relationships between mental effort and physiological data such as skin temperature, heart rate, and electrodermal activity, we have yet to demonstrate their efficacy for the forecasting of mental effort such that a useful mental effort tracker can be developed. Given prior difficulty in extracting relationships between mental effort and physiological responses that are repeatable across individuals, we make the case that fusing self-report measures with physiological data within an internet or smartphone application may provide an effective method for training a useful mental effort tracking system. In this case study, we utilized over 90 h of data from a single participant over the course of a college semester. By fusing the participant’s self-reported mental effort in different activities over the course of the semester with concurrent physiological data collected with the Empatica E4 wearable sensor, we explored questions around how much data were needed to train such a device, and which types of machine-learning algorithms worked best. We concluded that although baseline models such as logistic regression and Markov models provided useful explanatory information on how the student’s physiology changed with mental effort, deep-learning algorithms were able to generate accurate predictions using the first 28 h of data for training. A system that combines long short-term memory and convolutional neural networks is recommended in order to generate smooth predictions while also being able to capture transitions in mental effort when they occur in the individual using the device. Full article
(This article belongs to the Special Issue Sensor Fusion and Statistical Signal Processing)
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