Blind source separation: A review and analysis

Pal, Madhab; Roy, Rajib; Basu, Joyanta; Bepari, Milton Samirakshma

doi:10.1109/icsda.2013.6709849

Cited by 47 publications

(32 citation statements)

References 18 publications

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“…Further, the platinum-based fuel cell sensor only responds to substances that can be reduced or oxidized at a platinum electrode, which intrinsically provides certain specificity [56]. In our field tests, the major source of interference observed was due to various types of alcohols, which can potentially be distinguished by adding other sensing modalities and using blind signal separation techniques [57].…”

Section: Discussionmentioning

confidence: 99%

A wearable IoT aldehyde sensor for pediatric asthma research and management

Dong

Downen

et al. 2019

Sensors and Actuators B: Chemical

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Mechanistic studies of pediatric asthma require objective measures of environmental exposure metrics correlated with physiological responses. Here we report a cloud-based wearable IoT sensor system which can measure an asthma patient's exposure to aldehydes, a known class of airway irritants, in real-life settings. The wrist-watch shaped sensor can measure formaldehyde levels in air from 30ppb to 10ppm using fuel cell technology, and continuously operate over 7 days without recharging. The sensor wirelessly uploads data to an Android smartphone via Bluetooth Low Energy (BLE). The smartphone also functions as a gateway to a cloud-based informatics system which handles sensor data storage, management and analytics. Potential applications of this IoT sensor system include epidemiological studies of asthma development and exacerbations, personalized asthma management and environmental monitoring.

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Section: Discussionmentioning

confidence: 99%

A wearable IoT aldehyde sensor for pediatric asthma research and management

Dong

Downen

et al. 2019

Sensors and Actuators B: Chemical

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“…Blind source separation (BSS) refers to estimating the parameters of each transmitter and transmission channel only by observing the signals when the parameters of each input signal and transmission channel are unknown [9,10]. e mixing process is expressed by mathematical formulas as follows:…”

Section: Blind Source Separation Modelmentioning

confidence: 99%

Research on the Fault Feature Extraction Method of Rotor Systems Based on GAW-PSO

Miao

Zhao

Wang

2020

Mathematical Problems in Engineering

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In order to solve the problem of blind separation of signals from dynamic hybrid rotor systems, this paper proposed an improved adaptive inertial weight particle swarm optimization method based on genetic mechanism. The method takes the negative entropy of separated signal as the objective function and adaptively adjusts the inertia weight according to the difference of particle fitness, thus reducing the number of invalid iterations. At the same time, genetic hybridization mechanism was introduced to increase population diversity and facilitate the processing of dynamic mixed signals. The orthogonal matrix is expressed as a parameterized form, which can reduce the complexity of the algorithm. The simulation results showed that the performance of the proposed method is better than that of the traditional method for blind separation of dynamic hybrid analog mechanical signals. It can separate the actual dynamic rotor system signals and achieve the purpose of fault feature extraction.

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“…Also, isolation allows feeding a specific diet to individual animals (Reijmers et al, 2007) . Acoustic isolation improves the quality of song recordings, because audio unmixing is not possible with multiple overlapping and highly variable sound sources such as birds (Pal et al, 2013) . In zebra finches, single housing can also be an important behavioral parameter.…”

Section: Welfare Associated With Isolation and Changes In Husbandrymentioning

confidence: 99%

Welfare of zebra finches used in research

Yamahachi

Zai

Tachibana

et al. 2017

Preprint

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Over the past 50 years, songbirds have become a valuable model organism for scientists studying vocal communication from its behavioral, hormonal, neuronal, and genetic perspectives. Many advances in our understanding of vocal learning result from research using the zebra finch, a close-ended vocal learner. We review some of the manipulations used in zebra finch research, such as isolate housing, transient/irreversible impairment of hearing/vocal organs, implantation of small devices for chronic electrophysiology, head fixation for imaging, aversive song conditioning using sound playback, and mounting of miniature backpacks for behavioral monitoring. We highlight the use of these manipulations in scientific research, and estimate their impact on animal welfare, based on the literature and on data from our past and ongoing work. The assessment of harm-benefits tradeoffs is a legal prerequisite for animal research in Switzerland. We conclude that a diverse set of known stressors reliably lead to suppressed singing rate, and that by contraposition, increased singing rate may be a useful indicator of welfare. We hope that our study can contribute to answering some of the most burning questions about zebra finch welfare in research on vocal behaviors. Therefore, the interplay between corticosterone levels during development and long-term consequences of stress needs to be further studied. Skin temperatureA stressor can increase the core body temperature, provoking a decrease of the surface temperature. This phenomenon known as stress-induced hyperthermia could be utilized to measure stress. Indeed, infrared thermography has been used to determine the effect of stressful procedures in birds (Edgar et al., 2013;Herborn et al., 2015;Jerem et al., 2015) . Contrary to the stress snapshot of corticosterone, this non-invasive imaging method might provide longitudinal measurements of stress. Body weightBody weight can be used to assess body condition in birds, especially when multiple measurements are made over the course of a study (Brown, 1996;Dickens et al., 2009bDickens et al., , 2009a .

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Blind source separation: A review and analysis

Cited by 47 publications

References 18 publications

A wearable IoT aldehyde sensor for pediatric asthma research and management

A wearable IoT aldehyde sensor for pediatric asthma research and management

Research on the Fault Feature Extraction Method of Rotor Systems Based on GAW-PSO

Welfare of zebra finches used in research

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