Zobrazeno 1 - 10
of 1 511
pro vyhledávání: '"Tightly Coupled"'
Publikováno v:
Geo-spatial Information Science, Pp 1-18 (2024)
High-precision positioning and navigation are necessary for autonomous driving. GNSS RTK and INS integrated system is commonly used in vehicular navigation. But it suffers from severe signal reflections and blockages of GNSS signals and error accumul
Externí odkaz:
https://doaj.org/article/d4bb8275963246a48137dd0e56318e99
Autor:
Seongjung Kim, Sangwook Nam
Publikováno v:
Journal of Electromagnetic Engineering and Science, Vol 24, Iss 5, Pp 541-543 (2024)
This letter introduces a novel wideband, low profile, tightly coupled dipole subarray for wireless communication systems. The proposed subarray, composed of 3 × 3 unit elements, offers a planar structure with high aperture efficiency. The unit eleme
Externí odkaz:
https://doaj.org/article/450195ea82524f15adbe2c667ef19f67
Autor:
MA Aiqiang, YAO Wanqiang
Publikováno v:
Gong-kuang zidonghua, Vol 50, Iss 5, Pp 107-117 (2024)
Mobile robots based on simultaneous localization and mapping (SLAM) technology can quickly, accurately, and automatically collect spatial data for spatial intelligent perception and environmental map construction. It is the key to achieving intellige
Externí odkaz:
https://doaj.org/article/220a320f8c634b6da5693b99c21583bb
Publikováno v:
IEEE Access, Vol 12, Pp 142215-142226 (2024)
This study proposes a sensor integration design of magnetic positioning system (MPS) for achieving robust navigation performance. Despite consistent permeability of AC magnetic fields, signal strength that is inversely proportional to the square of t
Externí odkaz:
https://doaj.org/article/b9e3b858377f4998a3b328375f880c46
Autor:
Eric D. Robinson, Carey M. Rappaport
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 5, Iss 5, Pp 1340-1350 (2024)
Unbalanced-fed Tightly-Coupled Dipole Arrays (TCDAs) allow for the realization of ultrawideband, wide-scanning phased arrays without the need for baluns, which may increase size, weight, and cost. However, unbalanced-fed TCDAs often have additional r
Externí odkaz:
https://doaj.org/article/1cb4a3b870d348c999a4f9c39dc22965
Publikováno v:
IEEE Access, Vol 12, Pp 73279-73291 (2024)
The Gaussian sum extended Kalman filter (GSEKF), as a nonlinear non-Gaussian filter, disregards the impact of colored noise components in non-Gaussian noise engendered by external interference, which may compromise the estimation accuracy in global n
Externí odkaz:
https://doaj.org/article/b6fd2e131335431e990bff9b4d31d699
Autor:
Yixian Zhu, Ling Zhou
Publikováno v:
IEEE Access, Vol 12, Pp 31279-31286 (2024)
The application of long baseline aided strap-down inertial navigation system (SINS/LBL) has been demonstrated to be an effective solution for accumulative position errors of underwater vehicles (UVs). To address the inefficient positioning when avail
Externí odkaz:
https://doaj.org/article/138a7241cb444d31948bcfd2810ad2ed
Publikováno v:
Mathematical Biosciences and Engineering, Vol 21, Iss 1, Pp 963-983 (2024)
The Kalman filter based on singular value decomposition (SVD) can sufficiently reduce the accumulation of rounding errors and is widely used in various applications with numerical calculations. However, in order to improve the filtering performance a
Externí odkaz:
https://doaj.org/article/e1095f3b25f64a4ea4092be02e726aae
Autor:
Gianluca Corraro, Federico Corraro, Andrea Flora, Giovanni Cuciniello, Luca Garbarino, Roberto Senatore
Publikováno v:
Aerospace, Vol 11, Iss 11, p 955 (2024)
A global navigation satellite system (GNSS) for remotely piloted aircraft systems (RPASs) positioning is essential, thanks to the worldwide availability and continuity of this technology in the provision of positioning services. This makes the GNSS t
Externí odkaz:
https://doaj.org/article/885e9b057f9044f7b6d28f3e58458fc7
Publikováno v:
Remote Sensing, Vol 16, Iss 22, p 4171 (2024)
Continuous accurate positioning in global navigation satellite system (GNSS)-denied environments is essential for robot navigation. Significant advances have been made with light detection and ranging (LiDAR)-inertial measurement unit (IMU) technique
Externí odkaz:
https://doaj.org/article/5e417f91bb5d46f7b11a0843db41cd64