Home / Why is PGC demodulation used in fiber optic sensing
The phase-generated-carrier (PGC) algorithm is the most widely used signal demodulation method for fiber-optic interferometer sensors (FOIS), due to its distinct advantages of high resolution, wide dynamic range, good linearity and multi-channels demodulation capability. Stimulated Brillouin scattering (SBS) suppression and phase demodulation are two fundamental issues in remote interferometric fiber sensing systems.
PGC (phase generated carrier) demodulation scheme is used widely in fiber-optic sensors. In this paper, we analyzed what factors affect the demodulation effect of PGC scheme. We
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However, when a phase noise stabilized laser is used, degradation in phase sensitivity of an interferometer can occur using PGC demodulation when compared with direct homodyne detection.
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Abstract. The fiber-optic hydrophone is an advanced detection method for mod-ern naval anti-submarine warfare and underwater weapon testing, mainly used to detect marine acoustic environments. The
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A novel ameliorated phase generated carrier (PGC) demodulation algorithm based on arctangent function and differential-self-multiplying (DSM) is proposed in this paper.
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In order to solve the problem of optic intensity fluctuating in the optical fiber sensing system with PGC modulation and demodulation, in this paper, firstly, it is analyzed that the impact of
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PGC demodulation schemes are widely used in fiber-optic interferometric sensors. All known PGC schemes use carrier signals to obtain in-phase and quadrature components from the
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Fiber-optic interferometric sensors (FOISs) have been widely used in pipeline leakage monitoring, earthquake monitoring, building structure safety monitoring, and so on, because of their
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The phase-generated-carrier (PGC) algorithm is the most widely used signal demodulation method for fiber-optic interferometer sensors (FOIS), due to its distinct advantages of high resolution, wide
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The phase generated carrier (PGC) demodulation technique for phase-sensitive optical time-domain reflectometry (Ф-OTDR) has significant potential in applications involving distributed
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Phase generated carrier (PGC) demodulation is widely used in optical fiber interferometers due to its high sensitivity, large dynamic range and high signal fidelity.
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Abstract novel optical fiber-distributed vibration-sensing system is proposed, which is based on self-interference of Rayleigh back-scattering with phase-generated carrier (PGC) demodulation algorithm.
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Abstract Demodulation of fiber optic Fabry–Pérot (F-P) acoustic sensors with high sensitivity and a large dynamic range continues to pose significant challenges. In
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Abstract and Figures Distributed fiber acoustic sensing (DAS) technology can continuously spatially detect disturbances along the sensing fiber
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Phase generated carrier (PGC) demodulation is widely used in optical fiber interferometers due to its high sensitivity, large dynamic range and high
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In summary, we propose a method for simultaneously achieving effective SBS suppression and high-performance PGC demodulation using only an electro-optic phase modulator
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In this paper, an optical fiber interferometric sensor with improved phase generated carrier (PGC) demodulation algorithm is proposed to eliminate the influence of light intensity
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These improved algorithms are implemented at the cost of losing some performance of the systems. In this paper, we propose an all-digital demodulation system of interferometric fiber optic sensor with a
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This type of deep integration allows distributed sensing to utilize the optical fiber communication cable, wavelength channel, optical signal and
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Since the performance of fiber optic acoustic sensors is directly influenced by demodulation methods, it is essential to develop a demodulation method that not
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1. Introduction Fiber optic interference sensors (FOIS) are characterized by high sensitivity, immunity to electromagnetic interference, and large dynamic range, and are widely used
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Phase generated carrier (PGC) demodulation is widely used in optical fiber interferometers due to its high sensitivity, large dynamic range and high signal fidelity. Based on the traditional PGC
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Phase generated carrier (PGC) demodulation technology has been widely used in fiber-optic interferometric sensors while nonlinearity is always accompanying with the scheme.
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Stimulated Brillouin scattering (SBS) suppression and phase demodulation are two fundamental issues in remote interferometric fiber sensing
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Three-component fiber optic seismometers are widely used in the detection of seismic signals. The arctangent approach of phase-generated carrier (PGC-Arctan) demodulation algorithm is one of the
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Abstract Phase generation carrier (PGC) demodulation technique is widely adopted in the field of interferometric optical fiber sensors, for its high sensitivity, good linearity and large dynamic
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