Results 21 to 30 of about 1,399,039 (262)
Phase-Locked Loop with Inverse Tangent based Phase Detection
Advances in Electrical and Computer Engineering, 2021 In this paper, a novel closed-loop synchronization algorithm is proposed based on the linear phase angle detection. The linear phase detection is performed by the inverse tangent (atan2) trigonometric function, while the frequency tracking is performed
STOJIC, D.
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Coherent OTDR Using Flexible All-Digital Orthogonal Phase Code Pulse for Distributed Sensing
IEEE Access, 2020 A coherent optical time-domain reflectometer (COTDR) using flexible all-digital orthogonal phase code pulse is proposed for distributed acoustic sensing.
Wenjie Chen +7 more
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Equivalence of Open-Loop and Closed-Loop Operation of SAW Resonators and Delay Lines
Sensors, 2019 Surface acoustic wave (SAW) sensors in the form of two-port resonators or delay lines are widely used in various fields of application. The readout of such sensors is achieved by electronic systems operating either in an open-loop or in a closed-loop ...
Phillip Durdaut +3 more
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Photoacoustics, 2023 Photoacoustic and thermoacoustic detection methods, including picosecond ultrasonic laser sonar based on metallic thin films, are widely used in industrial applications for their noninvasiveness.
Ting-Shan Lee, Chi-Kuang Sun
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Photonics-Enabled High-Sensitivity and Wide-Bandwidth Microwave Phase Noise Analyzers
PhotonicsPhase noise constitutes a pivotal performance parameter in microwave systems, and the evolution of microwave signal sources presents new demands on phase noise analyzers (PNAs) regarding sensitivity and bandwidth.
Jingzhan Shi, Baojin Tu, Yiping Wang
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Detection of Neural Activity of Brain Functional Site Based on Microwave Scattering Principle
IEEE Access, 2019 A method of detecting brain neural activity with the microwave transmission technology is presented in this paper. This method is based on the fact that the dielectric properties of brain functional site vary with the electrophysiological neural activity.
Jing-Ke Wang +5 more
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Phase detection using trace compilation [PDF]
Proceedings of the 7th International Conference on Principles and Practice of Programming in Java, 2009 Dynamic compilers can optimize application code specifically for observed code behavior. Such behavior does not have to be stable across the entire program execution to be beneficial for optimizations, it must only be stable for a certain program phase. To specialize code for a program phase, it is necessary to detect when the execution behavior of the
Christian Wimmer +5 more
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Applied Sciences, 2018 This paper studies a second order generalized integrator-frequency locked loop (SOGI-FLL) control scheme applicable for 3-phase alternating current/direct current (AC/DC) pulse width modulation (PWM) converters used in DC distribution systems.
Jin-Wook Kang +5 more
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Direct and Sensitive Phase Readout for Integrated Waveguide Sensors
IEEE Photonics Journal, 2013 Integrated optical affinity sensors based on Mach-Zehnder interferometers (MZIs) enable sensitive and label-free detection of chemical and biological molecules.
R. Halir +4 more
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Sensors, 2022 The balanced-field electromagnetic technique is an effective in-line inspection method for pipeline cracks. To address the problem that the interference signal generated by the tilt jitter of the sensor during the detection process affects the judgment ...
Jiayin Li +3 more
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