A high resolution ultra low frequency phase generated carrier(PGC) demodulation technique for interferometric fiber sensors is proposed. The differential cross multiplication(DCM) algorithm and the Arctangent algorithm of PGC technique are analyzed theoretically and simulated by computer for ultra low frequency demodulation. And the results show that an unnecessary random direct current(DC) drift is induced in the recovered signal of DCM-PGC, but it doesn't exit in that of Arctangent-PGC. To demonstrate the conclusion, an optical fiber interferometer-based ultra low frequency sensing system is set up, and the comparable experiments of DCM-PGC and Arctangent-PGC are carried out. The experimental results show that only Arctangent-PGC can be u...
International audienceIn this letter we report on an all optical-fibre approach to the synthesis of ...
An ultra-low phase noise microwave frequency is transferred over 82 km of installed fibre by propaga...
A high performance interrogation method for ultra-weak FBG (UWFBG) using double-pulse and heterodyne...
A novel digital demodulation scheme for an interferometric optical fiber sensor is developed, which ...
A novel ameliorated phase generated carrier (PGC) demodulation algorithm based on arctangent functio...
A passive homodyne phase demodulation technique based on a linear-fitting trigonometric-identity-tra...
A large-dynamic-range and high-stability phase demodulation technology for fiber-optic Michelson int...
A method of homodyne demodulation using a phase generated carrier is described and experimentally de...
International audienceWe report what we believe to be the lowest phase noise optical-to-microwave fr...
A fast real-time demodulation method based on the coarsely sampled spectrum is proposed for transien...
19th International Conference on Optical Fibre Sensors, Perth, Australia, 15-18 April 2008A real-tim...
We demonstrate a Distributed Acoustic Sensor (DAS) based on Ultra-Weak Fiber Bragg Gratings (UWFBGs)...
This paper presents a rapid signal processing approach for OCMI system, which could significantly re...
In this work, we used PWM sampling for demodulation of a fiber-optic interferometric current trans-f...
International audienceIn this letter we report on an all optical-fibre approach to the synthesis of ...
An ultra-low phase noise microwave frequency is transferred over 82 km of installed fibre by propaga...
A high performance interrogation method for ultra-weak FBG (UWFBG) using double-pulse and heterodyne...
A novel digital demodulation scheme for an interferometric optical fiber sensor is developed, which ...
A novel ameliorated phase generated carrier (PGC) demodulation algorithm based on arctangent functio...
A passive homodyne phase demodulation technique based on a linear-fitting trigonometric-identity-tra...
A large-dynamic-range and high-stability phase demodulation technology for fiber-optic Michelson int...
A method of homodyne demodulation using a phase generated carrier is described and experimentally de...
International audienceWe report what we believe to be the lowest phase noise optical-to-microwave fr...
A fast real-time demodulation method based on the coarsely sampled spectrum is proposed for transien...
19th International Conference on Optical Fibre Sensors, Perth, Australia, 15-18 April 2008A real-tim...
We demonstrate a Distributed Acoustic Sensor (DAS) based on Ultra-Weak Fiber Bragg Gratings (UWFBGs)...
This paper presents a rapid signal processing approach for OCMI system, which could significantly re...
In this work, we used PWM sampling for demodulation of a fiber-optic interferometric current trans-f...
International audienceIn this letter we report on an all optical-fibre approach to the synthesis of ...
An ultra-low phase noise microwave frequency is transferred over 82 km of installed fibre by propaga...
A high performance interrogation method for ultra-weak FBG (UWFBG) using double-pulse and heterodyne...