Zobrazeno 1 - 10
of 146
pro vyhledávání: '"Xianrong WAN"'
Publikováno v:
Zhongguo yiliao qixie zazhi, Vol 48, Iss 5, Pp 498-504 (2024)
Bowel sounds can reflect the movement and health status of the gastrointestinal tract. However, the traditional manual auscultation method has subjective deviation and is time-consuming and labor-intensive. In order to better assist doctors in diagno
Externí odkaz:
https://doaj.org/article/8f355eea386846528b9d594aa9009951
A Track Initiation Method for FM-based Passive Radar Network Based on Multiple Elementary Hypotheses
Publikováno v:
Leida xuebao, Vol 13, Iss 3, Pp 601-612 (2024)
Passive radars based on FM radio signals have low detection probability, high false alarm rates and poor accuracy, presenting considerable challenges to target tracking in radar networks. Moreover, a high false alarm rate increases the computational
Externí odkaz:
https://doaj.org/article/6887bb53d8944bed8b710ab609530ea8
Publikováno v:
Leida xuebao, Vol 13, Iss 1, Pp 160-173 (2024)
Orthogonal Frequency Division Multiplexing (OFDM) waveform design is one of the key physical layer technologies for achieving joint radar-communication. OFDM waveforms usually have issues with high Peak to Average Power Ratio (PAPR) and high waveform
Externí odkaz:
https://doaj.org/article/5429c92a51544daea6ee704742c9fe31
Publikováno v:
Digital Communications and Networks, Vol 9, Iss 3, Pp 757-768 (2023)
In cellular systems, establishing the initial symbol timing of potential preambles is the first step of a cell search. The envelope fluctuation of the downlink signal hinders the successful timing of conventional symbol timing methods. To solve this
Externí odkaz:
https://doaj.org/article/0ad5afe4fa4a4392aa79a70db2ab2976
Publikováno v:
Leida xuebao, Vol 11, Iss 5, Pp 794-804 (2022)
Micro-motion clutter typically exhibits significant Doppler broadening, raises the noise floor, and annihilates weak targets, resulting in false alarms and missed detections. Removing micro-motion clutter effectively is critical to improving radar pe
Externí odkaz:
https://doaj.org/article/bef059cffb00485da0b89fc928cbfdf9
Autor:
Xianrong WAN, Jianxin YI, Weijie ZHAN, Deqiang XIE, Kan SHU, Jiale SONG, Feng CHENG, Yunhua RAO, Ziping GONG, Hengyu KE
Publikováno v:
Leida xuebao, Vol 9, Iss 6, Pp 939-958 (2020)
Given the functions and performance advantages of passive radar, this paper first reviews the research history of passive radar for more than 80 years and then examines the research progress of related key technologies, including reference signal rec
Externí odkaz:
https://doaj.org/article/614bd76e84374d5bada598c475b0d728
Publikováno v:
Leida xuebao, Vol 9, Iss 6, Pp 987-997 (2020)
Radar and its countermeasure technology promote each other and make continuous progress in the development of radar system. Recently, passive radar systems have received extensive attention by research institutes at home and abroad owing to their exc
Externí odkaz:
https://doaj.org/article/0e54a03985e946f6827e16448fb83978
Publikováno v:
Leida xuebao, Vol 9, Iss 6, Pp 967-973 (2020)
This article presents experimental results of target detection using a miniaturized multichannel passive radar system that exploits Long Term Evolution (LTE) signals. First, the advantages of LTE signals are discussed with respect to their ambiguity
Externí odkaz:
https://doaj.org/article/1abbc5a3df23412b8f34e9c0c75ac0d4
Publikováno v:
IEEE Access, Vol 8, Pp 74024-74038 (2020)
The robust reconstruction of the reference signal is one of the key technologies in passive radars. This paper investigates the reference signal reconstruction problem for digital television terrestrial multimedia broadcasting (DTMB)-based passive ra
Externí odkaz:
https://doaj.org/article/3522fca90706431b9d852df0df6864bb
Publikováno v:
IEEE Access, Vol 7, Pp 163478-163486 (2019)
To deal with the problem of signal detection in correlated subspace, this paper presents an augmented generalized likelihood ratio test (AGLRT) detector. Compared with traditional GLRT detector, this AGLRT detector has the advantage of incorporating
Externí odkaz:
https://doaj.org/article/b704052be0534b54ae3eb6f20a7270ca