DEMODULATION

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Prediction of fiber Rayleigh scattering responses based on deep learning
《Science China(Information Sciences)》2023年第12期160-174,共15页Yongxin LIANG Jianhui SUN Jialei ZHANG Yuyao WANG Anchi WAN Shibo ZHANG Zhenyu YE Shengtao LIN Zinan WANG 
supported by National Natural Science Foundation of China (Grant No. 62075030);National Ten-Thousand Talent Program (Grant No. W030211001001);Sichuan Provincial Project for Outstanding Young Scholars in Science and Technology (Grant No. 2020JDJQ0024)。
Distributed acoustic sensing(DAS) is a fiber sensing technology based on Rayleigh scattering,which transforms optical fiber into a series of sensing units. It has become an indispensable part in the field of seismic m...
关键词：distributed acoustic sensing Rayleigh scattering deep learning bidirectional gated recurrent unit intelligent demodulation 
MMSE channel estimation for two-port demodulation reference signals in new radio被引量：2
《Science China(Information Sciences)》2021年第6期243-244,共2页Dejin KONG Xiang-Gen XIA Pei LIU Qibiao ZHU 
supported by National Natural Science Foundation of China (Grant Nos. 62001333,62001336, 61961024);Fundamental Research Funds for the Central Universities (Grant No. WUT:2020IVA024)。
Dear editor,Orthogonal frequency division multiplexing(OFDM) has been adopted in new radio(NR) [1], and multiple-port demodulation reference signal(DMRS) has been designed to achieve channel estimation. In NR, two por...
关键词：channel estimation. REFERENCE 
A 256×256 time-of-flight image sensor based on center-tap demodulation pixel structure被引量：5
《Science China(Information Sciences)》2016年第4期128-137,共10页Zhe CHEN Shan DI Zhongxiang CAO Qi QIN Fei JI Liyuan LIU Nanjian WU 
supported by National Natural Science Foundation of China (Grant Nos. 61234003, 61434004, 61504141);Funds for Major State Basic Research of China (Grant No. 2011CB932902)
This paper proposes a 256×256 time-of-flight（TOF） image sensor based on the center-tap（CT）demodulation pixel structure. The image sensor can capture both the two-dimensional（2D） high speed image and the three-d...
关键词：CMOS image sensor demodulation pixel depth image pinned photodiode time-of-flight（TOF） 
A circular zone partition method for identifying Duffing oscillator state transition and its application to BPSK signal demodulation被引量：9
《Science China(Information Sciences)》2011年第6期1274-1282,共9页FU YongQing WU DongMei ZHANG Lin & LI XingYuan 
supported by the National Natural Science Foundation of China(Grant No.60772025);the Science Research Fund of Harbin Engineering University(Grant No.HEUF0507)
When a Duffing oscillator is applied to signal detection, identifying its state transition is indispensable. Due to lack of an effective method for automatically distinguishing the state transition, phase analysis is ...
关键词：CHAOS nonlinear oscillators signal detection digital communication RECEIVERS 
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