Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Zuping Tang"'
Publikováno v:
Space: Science & Technology, Vol 4 (2024)
In order to achieve global multiple seamless coverage, space-based internet usually adopts low Earth orbit (LEO) mega-constellation networks structure, which has the characteristics of high network topology dynamics, limited on-board computing and st
Externí odkaz:
https://doaj.org/article/794c5755c8e94d7d9de30449d352b751
Publikováno v:
Remote Sensing, Vol 16, Iss 8, p 1407 (2024)
Conventional global navigation satellite system receivers typically employ a two-step positioning procedure (2SP) by first independently estimating the synchronization parameters and then using these parameters to solve a system of superdeterministic
Externí odkaz:
https://doaj.org/article/34106620aeb446a697e350a86b078358
Publikováno v:
Remote Sensing, Vol 16, Iss 1, p 73 (2023)
Multipath effects are the most challenging error sources for the Global Navigation Satellite System receiver, affecting observation quality and positioning accuracy. Due to the non-linear and time-varying nature, multipath error is difficult to proce
Externí odkaz:
https://doaj.org/article/5a91bdf1dfd14bacb34de536770a6861
Publikováno v:
Entropy, Vol 25, Iss 8, p 1163 (2023)
Orthogonal time-frequency space (OTFS) modulation outperforms orthogonal frequency-division multiplexing in high-mobility scenarios through better channel estimation. Current superimposed pilot (SP)-based channel estimation improves the spectral effi
Externí odkaz:
https://doaj.org/article/9d22c28574474530ae17fbc4f4fdd6f6
Publikováno v:
Satellite Navigation, Vol 2, Iss 1, Pp 1-9 (2021)
Abstract Civil receivers of Global Navigation Satellite System (GNSS) are vulnerable to spoofing and jamming attacks due to their signal structures. The Spreading Code Authentication (SCA) technique is one of the GNSS message encryption identity auth
Externí odkaz:
https://doaj.org/article/296226855a57400499f8c5b23e144343
Autor:
Xiangli Zhang, Jiazhen Zhang, Tianze Luo, Tianye Huang, Zuping Tang, Ying Chen, Jinsheng Li, Dapeng Luo
Publikováno v:
Remote Sensing, Vol 14, Iss 5, p 1252 (2022)
Accurate recognition of radar modulation mode helps to better estimate radar echo parameters, thereby occupying an advantageous position in the radar electronic warfare (EW). However, under low signal-to-noise ratio environments, recent deep-learning
Externí odkaz:
https://doaj.org/article/37f581844e5c4ad0a1d2310ef3cfdda7
Publikováno v:
IEEE Transactions on Aerospace and Electronic Systems. :1-30
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad4c9187cad44ade33997060bb95d88d
https://doi.org/10.1109/taes.2023.3275129
https://doi.org/10.1109/taes.2023.3275129
Publikováno v:
Lecture Notes in Electrical Engineering ISBN: 9789811631412
Low earth orbit (LEO) satellite navigation augmentation system has higher ground received signal power and faster Doppler change than Global Navigation Satellite System (GNSS), improving the positioning accuracy with occlusion and shortening the time
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d93f74ed304c948ed3b7071ee63a560
https://doi.org/10.1007/978-981-16-3142-9_24
https://doi.org/10.1007/978-981-16-3142-9_24
Publikováno v:
Journal of Navigation. 72:140-154
A new unambiguous tracking technique based on combined correlation functions for sine Binary Offset Carrier (BOC) signals is proposed in this paper. The key to this method is to exploit two types of local reference signals: the BOC signal and a linea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20e95637442d794ee77cc3ea05dbe84e
https://doi.org/10.1017/s0373463318000498
https://doi.org/10.1017/s0373463318000498
Publikováno v:
Journal of Navigation. 71:899-918
In the new generation of Global Navigation Satellite Systems (GNSS), dual-frequency constant envelope multiplexing is widely desired and is becoming an important subject in signal design. Considerable work has been devoted to multiplexing for the Alt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::066631cd393a6d04b01404a869db9183
https://doi.org/10.1017/s0373463317000959
https://doi.org/10.1017/s0373463317000959