Zobrazeno 1 - 10
of 87
pro vyhledávání: '"Guangyi Guo"'
Publikováno v:
Applied Sciences, Vol 14, Iss 14, p 6208 (2024)
With the growing demand for positioning services, angle-of-arrival (AoA) estimation or direction-finding (DF) has been widely investigated for applications in fifth-generation (5G) technologies. Many existing AoA estimation algorithms only require th
Externí odkaz:
https://doaj.org/article/93aede10de4c443caf65baf948a01775
Publikováno v:
Geo-spatial Information Science, Vol 26, Iss 3, Pp 480-495 (2023)
ABSTRACTThe indoor positioning system is now an important technique as part of the Internet-of-Things (IoT) ecosystem. Among indoor positioning techniques, multiple Wi-Fi Access Points (APs)-based positioning systems have been researched a lot. There
Externí odkaz:
https://doaj.org/article/3cf8eaf2d5a143b786b172babdb0c5fb
Publikováno v:
Materials & Design, Vol 223, Iss , Pp 111137- (2022)
The effects of increasing levels of pre-deformation on the mechanical properties and microstructure evolution (dominantly T1 phase) of an extensively used aerospace Al-Cu-Li alloy have been systematically investigated during the non-isothermal aging.
Externí odkaz:
https://doaj.org/article/4a84d8c91e8047f4b37b07d70ddbe126
Publikováno v:
Remote Sensing, Vol 15, Iss 2, p 423 (2023)
China developed its Digital Television (DTV) standard in 2006, known as Digital Television Terrestrial Multimedia Broadcasting (DTMB), which employs time-domain synchronous orthogonal frequency division multiplexing (TDS-OFDM) as the modulation metho
Externí odkaz:
https://doaj.org/article/637321a61cfa4430b4ab9b9b087fbc52
Publikováno v:
IEEE Internet of Things Journal. 10:9782-9795
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c247b80613b6cb0827b7678b5e21ce2
https://doi.org/10.1109/jiot.2023.3234123
https://doi.org/10.1109/jiot.2023.3234123
Publikováno v:
IEEE Sensors Journal. 23:12346-12354
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63d10aad60043648fd16e48d39dbc5b7
https://doi.org/10.1109/jsen.2023.3267121
https://doi.org/10.1109/jsen.2023.3267121
Publikováno v:
Geo-spatial Information Science, Vol 22, Iss 4, Pp 279-289 (2019)
This article presents an indoor infant monitoring system based on Android system which employs a low-cost Bluetooth Low Energy (BLE) pseudolite to accurately locate the infants in the activity indoors and timely remind the parents. It can achieve a p
Externí odkaz:
https://doaj.org/article/b6c1116029c14658aefab2f7e91e55b7
Publikováno v:
IEEE Access, Vol 7, Pp 95140-95153 (2019)
Sensors-based and radio frequency (RF)-based indoor localization technology is one of the keys in location-based services. The IEEE 802.11-2016 introduced the Wi-Fi fine timing measurement (FTM) protocol, which provides a new approach for Wi-Fi-based
Externí odkaz:
https://doaj.org/article/ca568c72106c429db15e5fa1378e6bc6
Publikováno v:
IEEE Access, Vol 7, Pp 176767-176781 (2019)
Real-time locating and tracking Technology plays a significant role in location-based IoT applications. With the extensive installation of WiFi access points, the WiFi based indoor positioning approach has become one of the most widely used location
Externí odkaz:
https://doaj.org/article/e3629c1f08b340d1a7f44d3e4f8ab05d
Publikováno v:
IEEE Access, Vol 7, Pp 162439-162453 (2019)
Indoor positioning services have become necessary in many situations. Radio frequency (RF) signals are suitable for being used for positioning because of their ubiquity and imperceptibility. This paper utilizes the information from the baseband of a
Externí odkaz:
https://doaj.org/article/70f86e91fea04eb49e92bbac05ec6225