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Application of EEMD combined with cross-correlation algorithm in Doppler flow signal: 《Journal of Measurement Science and Instrumentation》2025年第1期58-65,共8页SHI Fengdong GONG Ruishi LIANG Tongtong LÜDong; supported by National Natural Science Foundation of China(No.61973234);Tianjin Science and Technology Plan Project(No.22YDTPJC00090)。; To address the issue of low measurement accuracy caused by noise interference in the acquisition of low fluid flow rate signals with ultrasonic Doppler flow meters,a novel signal processing algorithm that combines ens...; 关键词：ultrasonic Doppler flow meter ensemble empirical mode decomposition(EEMD) CROSS-CORRELATION fast Fourier transform(FFT)spectrum analysis energy entropy

Sparse Bayesian Learning Based Off-Grid Estimation of OTFS Channels with Doppler Squint: 《Tsinghua Science and Technology》2024年第6期1821-1828,共8页Xuehan Wang Xu Shi Jintao Wang; Orthogonal Time Frequency Space(OTFS)modulation has exhibited significant potential to further promote the performance of future wireless communication networks especially in high-mobility scenarios.In practical OTFS ...; 关键词：orthogonal time frequency space modulation Doppler squint effect channel estimation sparse Bayesian learning

OTFS on Overspread Doubly Selective Channel: 《China Communications》2024年第11期205-215,共11页Qing Hua Liu Yun Shi Xiayang Yu Hua Ji Fei Cui Yinming; supported by National Natural Science Foundation of China(grant number 62071504);State Key Program of National Natural Science Foundation of China(grant numbers 62192712,62192711);Project of Science and Technology in Henan Province(grant numbers 222102210317,232102210078);Doctoral Research Foundation of Zhengzhou University of Light Industry(grant number 2021BSJJ030);Special Projects in Key Fields for General Universities of Guangdong Province(grant num 2021ZDZX1056)。; The orthogonal time frequency space(OTFS)modulation proposed in recent years is considered to have superior performance than orthogonal frequency division multiplexing(OFDM)for the doubly selective(DS)channels.The wor...; 关键词：delay-Doppler domain doubly selective channel OTFS overspread underwater acoustic communications

无源雷达时延-Doppler域高速多目标角度估计算法: 《清华大学学报（自然科学版）》2024年第10期1797-1808,共12页刘大鹏冯新星刘成城任勇杜军; 为了获取无源雷达中微弱目标回波的角度信息,现有研究主要采用基于时延-Doppler域二维相关处理的估计算法,其基本思想是通过参考信号和监视信号的互模糊函数来获得积累增益,提升回波信号信噪比,而后进行角度估计。该文针对高速多目标场...; 关键词：无源雷达均匀圆阵高速目标相干信号角度估计 KEYSTONE变换

UAMP-Based Delay-Doppler Channel Estimation for OTFS Systems: 《China Communications》2024年第10期1-15,共15页Li Zhongjie Yuan Weijie Guo Qinghua Wu Nan Zhang Ji; supported by the Key Scientific Research Project in Colleges and Universities of Henan Province of China(Grant Nos.21A510003);Science and the Key Science and Technology Research Project of Henan Province of China(Grant Nos.222102210053)。; Orthogonal time frequency space(OTFS)technique, which modulates data symbols in the delayDoppler(DD) domain, presents a potential solution for supporting reliable information transmission in highmobility vehicular net...; 关键词：channel estimation hidden Markov model(HMM) orthogonal time frequency space(OTFS) unitary approximate message passing(UAMP)

Doppler-resilient waveform design in integrated MIMO radar-communication systems: 《Science China(Information Sciences)》2024年第1期183-198,共16页Zhengchun ZHOU Bing LIU Bingsheng SHEN Avik Ranjan ADHIKARY Pingzhi FAN; supported in part by National Natural Science Foundation of China (Grant Nos.62071397,12001450,62131016);Natural Science Foundation of Sichuan (Grant Nos.2023NSFSC1912,2022NSFSC0906);Projects of Central Government to Guide Local Scientific and Technological Development (Grant No.2022ZYD0004)。; In recent years,the increased high-rate wireless services(5G and 6G) and reliable sensing capabilities(automotive radar,air traffic control,geophysical monitoring),have led to more serious spectrum congestion.Conventi...; 关键词：ambiguity function CORRELATION channel estimation integrated radar and communication(Rad-Com)systems MIMO radar zero correlation zone(zCz)sequence set zero odd-correlation zone(zOCz)nceset.

UAMP-Based Delay-Doppler Channel Estimation for OTFS Systems被引量：4: 《China Communications》2023年第10期70-84,共15页Zhongjie Li Weijie Yuan Qinghua Guo Nan Wu Ji Zhang; supported by the Key Scientific Research Project in Colleges and Universities of Henan Province of China(Grant Nos.21A510003);Science and the Key Science and Technology Research Project of Henan Province of China(Grant Nos.222102210053).; Orthogonal time frequency space(OTFS)technique,which modulates data symbols in the delay-Doppler(DD)domain,presents a potential solution for supporting reliable information transmission in highmobility vehicular netwo...; 关键词：orthogonal time frequency space(OTFS) channel estimation hidden Markov model(HMM) unitary approximate message passing(UAMP)

Radar Sensing via OTFS Signaling被引量：2: 《China Communications》2023年第9期34-45,共12页Kecheng Zhang Zhongjie Li Weijie Yuan Yunlong Cai Feifei Gao; By multiplexing information symbols in the delay-Doppler(DD)domain,orthogonal time frequency space(OTFS)is a promising candidate for future wireless communication in high-mobility scenarios.In addition to the superior...; 关键词：OTFS radar sensing delay-Doppler(DD)domain fractional delay and Doppler

New Delay Doppler Communication Paradigm in 6G Era:A Survey of Orthogonal Time Frequency Space(OTFS)被引量：5: 《China Communications》2023年第6期1-25,共25页Weijie Yuan Shuangyang Li Zhiqiang Wei Yuanhao Cui Jiamo Jiang Haijun Zhang Pingzhi Fan; supported in part by National Natural Science Foundation of China under Grant 62101232;in part by Guangdong Provincial Natural Science Foundation under Grant 2022A1515011257;in part by Shenzhen Science and Technology Program under Grant JCYJ20220530114412029。; In the 6G era,Space-Air-Ground Integrated Network(SAGIN)are anticipated to deliver global coverage,necessitating support for a diverse array of emerging applications in high-mobility,hostile environments.Under such co...; 关键词：OTFS 6G delay-Doppler(DD)domain

Channel Estimation for OTFS System over Doubly Spread Sparse Acoustic Channels被引量：5: 《China Communications》2023年第1期50-65,共16页Yang Zhang Qunfei Zhang Chengbing He Chao Long; supported by National Natural Science Foundation of China(No.62071383)。; This paper addresses sparse channels estimation problem for the generalized linear models(GLM)in the orthogonal time frequency space(OTFS)underwater acoustic(UWA)system.OTFS works in the delay-Doppler domain,where tim...; 关键词：OTFS doubly spread UWA channel delay-Doppler domain GAMP

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