Phase Compensation Scheme for Fiber-Optic Interferometric Vibration Demodulation

Chang, Tianying; Lang, Jinpeng; Sun, Wei; Chen, Jiandong; Yu, Miao; Gao, Wenzhi; Cui, Hong‐Liang

doi:10.1109/jsen.2017.2750725

Cited by 21 publications

(10 citation statements)

References 19 publications

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“…In the experiment, even if the optical path difference between the two arms is adjusted to π/2 in advance, the optical path difference between the two arms cannot be maintained at π/2 in the static state due to the slowly random phase drift noise and temperature changes. In order to solve this problem and make the FOS based on interferometer work stably, many demodulation schemes have been proposed [24][25][26][27][28][29][30][31][32][33][34]. However, there are some problems when demodulating vital signs signals based on optical fiber interferometers.…”

Section: Demodulation Schemesmentioning

confidence: 99%

“…B. Liu et al applied the PGC-DCM demodulation algorithm to demodulate the acoustic signal from a diaphragm-based long cavity Fabry-Perot interferometers sensor [27]. T. Chang et al proposed a novel phase compensation scheme based on the PGC-arctan algorithm, which overcomes the limitation of the amplitude range from −π/2 for arbitrary signals and established a Michelson interferometer measurement system [28]. It is currently one of the most important passive modulation and demodulation technologies in the field of interferometric optical fiber sensing.…”

Section: Pgc Demodulation Schemementioning

confidence: 99%

“…Due to the high cost of the FBG sensors and the limited sensitivity of the intensity-based sensors, researchers chose the interferometric FOS for vital signs monitoring. Researchers have dedicated much time and effort to the design of sensor structures [12][13][14][15][16][17][18][19][20][21][22][23], demodulation methods [12,[24][25][26][27][28][29][30][31][32][33][34][35][36] and the application of vital signs monitoring [12][13][14]16,[18][19][20][21][22][23][35][36][37][38][39][40][41][42][43][44][45].…”

Section: Introductionmentioning

confidence: 99%

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Vital Signs Monitoring Based on Interferometric Fiber Optic Sensors

et al. 2022

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Due to the improvement of living standards, people’s attention to health has gradually increased. More and more people are willing to spend money and time on health management. This article reviews work on the vital signs monitoring system based on fiber optic interferometers, including the design of sensor structures, signal demodulation methods and data analysis. After a large number of trials, the system can achieve long-term stable heart rate (HR), respiration rate (RR) and body temperature monitoring, and the collected data can be used for health analysis. Due to the high sensitivity, low cost, and light weight of the interferometric fiber optic sensor, it can be integrated under a mattress or a cushion, which is very suitable for daily use. The system has great application prospects in the field of healthcare.

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Section: Demodulation Schemesmentioning

confidence: 99%

Section: Pgc Demodulation Schemementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Vital Signs Monitoring Based on Interferometric Fiber Optic Sensors

et al. 2022

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“…Sistem remunerasi dapat dijadikan strategi sebagaimana kompensasi. Ada 5 hal yang dapat menentukan efektivitas dari kompensasi sebagai strategi, yaitu (Chang et al, 2017):…”

Section: Pendahuluanunclassified

Pemetaan Analisis Jabatan dan Penilaian Kinerja sebagai Dasar Pengembangan Sistem Remunerasi

Hidayah

Dewi

2021

bdr

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Job analysis and performance appraisals are the basis of developing a remuneration system consisting of fees for position, fees for service, and fees for people. Clinic Pratama receives payment for health services for patients participating in the National Health Insurance in the form of a capitation package. The capitation package distribution has not been regulated based on the position value index and performance appraisal according to the performance indicators of each employee’s detailed job descriptions, responsibilities and authorities. The purpose of this community service activity is to develop a remuneration system which can then be implemented in KPF as a strategy in human resource management facing the era of National Health Insurance (JKN) to achieve Universal Health Coverage (UHC). The method used is a qualitative method through a Focus Group Discussion (FGD) approach, interviews and documentation studies. The results of community service show that the Remuneration System can be developed based on Job Analysis and Performance Appraisals

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“…And the experiments to show the practicability of the CPDS algorithm are given. The interference signal [25][26][27][28] can be described as…”

Section: Introductionmentioning

confidence: 99%

Automatic carrier phase delay synchronization of PGC demodulation algorithm in fiber-optic interferometric sensors

Hou¹,

Guo²

2020

KSII TIIS

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Phase-generated carrier (PGC) demodulation algorithm is the main demodulation methods in Fiber-optic interferometric sensors (FOISs). The conventional PGC demodulation algorithms are influenced by the carrier phase delay between the interference signal and the carrier signal. In this paper, an automatic carrier phase delay synchronization (CPDS) algorithm based on orthogonal phase-locked technique is proposed. The proposed algorithm can calculate the carrier phase delay value. Then the carrier phase delay can be compensated by adjusting the initial phase of the fundamental carrier and the second-harmonic carrier. The simulation results demonstrate the influence of the carrier phase delay on the demodulation performance. PGC-Arctan demodulation system based on CPDS algorithm is implemented on SoC. The experimental results show that the proposed algorithm is able to obtain and eliminate the carrier phase delay. In comparison to the conventional demodulation algorithm, the signal-to-noise and distortion ratio (SINAD) of the proposed algorithm increases 55.99dB.

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Phase Compensation Scheme for Fiber-Optic Interferometric Vibration Demodulation

Cited by 21 publications

References 19 publications

Vital Signs Monitoring Based on Interferometric Fiber Optic Sensors

Vital Signs Monitoring Based on Interferometric Fiber Optic Sensors

Pemetaan Analisis Jabatan dan Penilaian Kinerja sebagai Dasar Pengembangan Sistem Remunerasi

Automatic carrier phase delay synchronization of PGC demodulation algorithm in fiber-optic interferometric sensors

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