Zobrazeno 1 - 10
of 318
pro vyhledávání: '"Signal measurement"'
Publikováno v:
Sensors, Vol 24, Iss 20, p 6670 (2024)
Bioelectrical signal measurements play a crucial role in clinical diagnosis and continuous health monitoring. Conventional wet electrodes, however, present limitations as they are conductive gel for skin irritation and/or have inflexibility. Here, we
Externí odkaz:
https://doaj.org/article/7e909aceb6c042f194bb3c03cc3050c5
Autor:
Christina Garcia, Sozo Inoue
Publikováno v:
Sensors, Vol 24, Iss 2, p 319 (2024)
In this study, we propose an augmentation method for machine learning based on relabeling data in caregiving and nursing staff indoor localization with Bluetooth Low Energy (BLE) technology. Indoor localization is used to monitor staff-to-patient ass
Externí odkaz:
https://doaj.org/article/aa454d7b9cbf44b08e5c6796b30d9e2a
Akademický článek
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Akademický článek
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Autor:
Hyeon Seok Seok, Hangsik Shin
Publikováno v:
IEEE Access, Vol 9, Pp 69335-69345 (2021)
The aim of this study was to identify changes in photoplethysmogram waveform with decreasing sampling frequency and quantization bit depth and suggest appropriate criteria for measurements. We performed down-sampling and re-quantization of phoplethys
Externí odkaz:
https://doaj.org/article/8b8f10f3c9504e27bc3c68618c119654
Publikováno v:
Sensors, Vol 23, Iss 3, p 1635 (2023)
This article focuses on cranes that are moving on a fixed crane track. There are specific problems and malfunctions arising during the operation of these cranes caused mainly by the crane skewing phenomenon. Crane skewing induces undesirable addition
Externí odkaz:
https://doaj.org/article/c10af79e194f45078aba90042a430351
Publikováno v:
Sensors, Vol 22, Iss 21, p 8119 (2022)
The number of older people needing healthcare is a growing global phenomenon. The assistance in long-term care comprises a complex of medical, nursing, rehabilitation, and social assistance services. The cost is substantial, but technology can help r
Externí odkaz:
https://doaj.org/article/b822f2b3b7d84fc6b867d30f40fb78b1
Autor:
Iman Firmansyah, Yoshiki Yamaguchi
Publikováno v:
IEEE Access, Vol 7, Pp 48849-48859 (2019)
Signal generation and measurement have been widely used in many engineering applications, such as for creating test signals in radar, communication, and software-defined radio. In field programmable gate array (FPGA) design, to generate and measure a
Externí odkaz:
https://doaj.org/article/7b117425b45b426097e7b5beed6da519
Publikováno v:
Applied Sciences, Vol 12, Iss 13, p 6431 (2022)
In the fault diagnosis field, the fault feature signal is weak and contaminated by the noise. The lock-in amplifier is a useful tool for weak signal detection. Aiming to the amplitude error of the lock-in amplifier caused by frequency deviation betwe
Externí odkaz:
https://doaj.org/article/84b45e54b8af4b9bbe8af120736fe27e
Publikováno v:
Sensors, Vol 22, Iss 8, p 3073 (2022)
This paper proposes a high-speed continuous wavelet transform (CWT) processor to analyze vital signals extracted from a frequency-modulated continuous wave (FMCW) radar sensor. The proposed CWT processor consists of a fast Fourier transform (FFT) mod
Externí odkaz:
https://doaj.org/article/6aa67752238c4d10a930bb1d8120c08c