Results 1 to 10 of about 54,672 (197)

Enhanced Loran System Demodulation for Complex Receive Environments: A Novel Matched Correlation Method Integrating Notch Filtering and Pattern Modulation [PDF]

Sensors
Demodulation is a key technology for the enhanced Loran (eLoran) system to achieve positioning and timing, and it affects the final performance of the system.
Xiangyi Wang, Baorong Yan, Tao Jin, Yun Li, Shifeng Li, Shiyao Liu   +5 more
doaj   +2 more sources

Demodulation algorithm for optical fiber fabry-perot interference sensor [PDF]

MATEC Web of Conferences, 2021
In view of resolution of optical fiber Fabry-Perot (FP) interference sensor, this paper analyses and researches high resolution demodulation algorithms including fast Fourier transform demodulation algorithm, cross-correlation calculation demodulation ...
Wang Wenhua, Wu Weina, Xiong Zhengye, Shi Wenqing, Luo Yuanzheng, Tian Xiuyun, Chen Zhishan   +6 more
doaj   +1 more source

Five-Step Phase-Shift-Based Multiwavelength Averaging for Extrinsic Fabry–Perot Interferometric Sensors

Photonics, 2023
In order to address issues such as low demodulation accuracy, large demodulation errors, small dynamic range, and complex algorithms for the extrinsic Fabry–Perot interferometric (EFPI) sensor, a five-step phase-shift algorithm based on a multiwavelength
Zheng Liu, Qiong Yao, Ji Xia, Gang Liu, Shuidong Xiong, Qingkai Hou   +5 more
doaj   +1 more source

The Efficacy of In-Phase and Quadrature Demodulation in Electronic Fetal Heart Rate Monitoring During Labor

Maternal-Fetal Medicine, 2022
. Objective:. To investigate the efficacy of in-phase and quadrature (IQ) demodulation in electronic fetal heart rate monitoring (EFM) to reduce false reports of fetal heart rate (FHR) doubling or halving. Methods:. This is a prospective cohort study.
Yiheng Liang, Ping Liu, Shaomei Yan, Yun Li, Duijin Chen, Shangrong Fan, Yang Pan   +6 more
doaj   +1 more source

Optimal Demodulation Band Extraction Method for Bearing Faults Diagnosis Based on Weighted Geometric Cyclic Relative Entropy

Machines, 2022
Optimal demodulation band extraction is a significant step in rolling bearing fault analysis. However, existing methods, primarily based on global indexes and neglecting negative local outliers, cannot identify compound faults in intense noise ...
Chunlei Wang, Ang Gao, Jianping Xuan
doaj   +1 more source

End-to-End PSK Signals Demodulation Using Convolutional Neural Network

IEEE Access, 2022
Demodulation techniques are of central importance for achieving intelligent receiving. Improvement in demodulation performance enhances the overall performance of a communication system correspondingly.
Wen-Jie Chen, Jiao Wang, Jian-Qing Li
doaj   +1 more source

Fiber Fabry-Perot Demodulation System Based on Dual Fizeau Interferometers

Photonic Sensors, 2022
In this study, we present a dual-Fizeau-interferometer-based high-speed and wide-range fiber-optic Fabry-Perot (F-P) demodulation system. We employ two Fizeau interferometers with air cavity thickness satisfying the quadrature requirement to increase the
Deyi Kong, Zengyu Song, Ning Wang, Zhiqi Wang, Peijian Huang, Yong Zhu, Jie Zhang   +6 more
doaj   +1 more source

Demodulation of EM Telemetry Data Using Fuzzy Wavelet Neural Network with Logistic Response

Applied Sciences, 2021
Data telemetry is a critical element of successful unconventional well drilling operations, involving the transmission of information about the well-surrounding geology to the surface in real-time to serve as the basis for geosteering and well planning ...
Olalekan Fayemi, Qingyun Di, Qihui Zhen, Pengfei Liang   +3 more
doaj   +1 more source

Demod-CNN: A Robust Deep Learning Approach for Intelligent Reflecting Surface-Assisted Multiuser MIMO Communication

Sensors, 2022
The intelligent reflecting surface (IRS) is a novel and innovative communication technology that aims at the control of the wireless environment. The IRS is considered as a promising technology for sixth-generation wireless communication. In the last few
Mohammad Abrar Shakil Sejan, Md Habibur Rahman, Hyoung-Kyu Song   +2 more
doaj   +1 more source

Demodulation Type Single-Phase PLL with DC Offset Rejection [PDF]

, 2020
International audienceThis Letter proposes demodulation type PLL for phase and frequency estimation of single‐phase system that can reject DC offset. Using results from the adaptive estimation literature, this Letter proposes a linear parametric model ...
Ahmed, Hafiz, Benbouzid, Mohamed
core   +1 more source