Zobrazeno 1 - 10
of 343
pro vyhledávání: '"Chun Jia"'
Publikováno v:
Remote Sensing, Vol 16, Iss 14, p 2584 (2024)
Ultra-short baseline (USBL) underwater positioning systems are widely used in marine scientific research and ocean engineering. Angle misalignment is a main error that reduces the accuracy of USBL underwater positioning. The conventional angle-calibr
Externí odkaz:
https://doaj.org/article/ba6dbb3cf15141f59ad2bfbcd63208a4
Publikováno v:
Micromachines, Vol 15, Iss 3, p 324 (2024)
Because the conventional Temperature Drift Error (TDE) estimation model for Capacitive MEMS Gyros (CMGs) has inadequate Temperature Correlated Quantities (TCQs) and inaccurate parameter identification to improve their bias stability, its novel model
Externí odkaz:
https://doaj.org/article/244e1241ae63437dad1f5024d5aab9bf
Publikováno v:
Shiyou shiyan dizhi, Vol 44, Iss 5, Pp 790-803 (2022)
The dynamic physical simulation of natural gas accumulation process is one of the important means to reveal the mechanism of natural gas migration and accumulation and to summarize its distribution law. However, due to the characteristics of natural
Externí odkaz:
https://doaj.org/article/a97e1d3177b045bc98d3a73030d4002b
Publikováno v:
Shiyou shiyan dizhi, Vol 43, Iss 3, Pp 487-497 (2021)
It has important theoretical and practical significance to clarify the causes and distribution of oil and gas. This paper focused on the key scientific issues in the current petroleum genesis research, guided by the general principles of global tecto
Externí odkaz:
https://doaj.org/article/76e377647e0949a7b220ec84e8db6fcf
Publikováno v:
Remote Sensing, Vol 13, Iss 4, p 823 (2021)
Since the traditional real-time kinematic positioning method is limited by the reduced satellite visibility from the deprived navigational environments, we, therefore, propose an improved RTK method with multiple rover receivers sharing a common cloc
Externí odkaz:
https://doaj.org/article/413aa47a474d46d4af20d811afb8b287
Publikováno v:
Remote Sensing, Vol 13, Iss 1, p 67 (2020)
Based on the statistical stability of the inter-system bias (ISB), we propose a tightly coupled Differential Global Navigation Satellite System (DGNSS) positioning method by using ionosphere-free combination for the long baseline applications. The pr
Externí odkaz:
https://doaj.org/article/4513b6b411254592a1e8b609ff72acaf
Publikováno v:
Sensors, Vol 15, Iss 7, Pp 17433-17452 (2015)
Continuity, real-time, and accuracy are the key technical indexes of evaluating comprehensive performance of a strapdown inertial navigation system (SINS). However, Schuler, Foucault, and Earth periodic oscillation errors significantly cut down the r
Externí odkaz:
https://doaj.org/article/cbddb77fbc8b4d00940b285ff5927e5e
Publikováno v:
Sensors, Vol 18, Iss 7, p 2109 (2018)
The stationary reference receiver with precisely known coordinates is difficult to establish in some special real-time relative positioning applications. To improve the relative position estimation accuracy and the reliability simultaneously for the
Externí odkaz:
https://doaj.org/article/f51b30ac3530415bb83af17b89bfeae3
Publikováno v:
Remote Sensing, Vol 9, Iss 11, p 1108 (2017)
The ionospheric bias and the combined observation noise are two crucial factors affecting the reliability of the triple-carrier ambiguity resolution (TCAR). In order to obtain a better reliability of TCAR, a new ionosphere-free and variance-restricte
Externí odkaz:
https://doaj.org/article/3844e738cf4d43a4bb8b6c8999937dc8
Publikováno v:
International Journal of Antennas and Propagation, Vol 2015 (2015)
This study focuses on mitigating the multipath, especially the short-delay multipath of the BeiDou navigation satellite system under impulsive noise conditions. A modified least mean p-norm (LMP) algorithm is developed to reduce the convergence time
Externí odkaz:
https://doaj.org/article/fff41fda33194299b36305169924826f