Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Qingzhong Cai"'
Publikováno v:
Actuators, Vol 13, Iss 8, p 283 (2024)
This paper introduces a current control method for permanent magnet synchronous motors (PMSMs) using a disturbance sliding mode observer (DSMO) in conjunction with a linear quadratic regulator (LQR). This approach enhances control performance, stream
Externí odkaz:
https://doaj.org/article/9d78ccb835d24b639ec8913466421211
Publikováno v:
Micromachines, Vol 15, Iss 7, p 825 (2024)
The demodulation phase error will cause the quadrature error to be coupled to the rate output, resulting in performance deterioration of the MEMS gyroscope. To solve this problem, an in-run automatic demodulation phase error compensation method is pr
Externí odkaz:
https://doaj.org/article/326c093ff2634e20a50fc72da475273c
Publikováno v:
IEEE Access, Vol 8, Pp 7937-7948 (2020)
In-motion alignment of Strapdown Inertial Navigation Systems (SINS) without any geodetic-frame observations is one of the toughest challenges for odometer aided navigation system. It is difficult to obtain an accurate attitude within a short time usi
Externí odkaz:
https://doaj.org/article/f69a54fe700b4589b2841f7da3287b1c
Publikováno v:
IEEE Access, Vol 8, Pp 15870-15882 (2020)
It is necessary to locate the precise timing of switching into non-damping mode when the ship comes across zigzag maneuver, which helps avoid overshoot errors and maintain accuracy of ship's attitudes. In this paper, we propose a novel method to make
Externí odkaz:
https://doaj.org/article/4bc06ec6693948d5a2c6870718442e1b
Publikováno v:
Nanomaterials, Vol 12, Iss 23, p 4298 (2022)
Metalenses composed of a large number of subwavelength nanostructures provide the possibility for the miniaturization and integration of the optical system. Broadband polarization-insensitive achromatic metalenses in the visible light spectrum have a
Externí odkaz:
https://doaj.org/article/aad42ca4e87b4aba99d6a3b2e0b33811
Publikováno v:
IEEE Access, Vol 7, Pp 20211-20224 (2019)
In-motion alignment of navigation-grade strapdown inertial navigation system (SINS) combined with odometer (OD) is one of the challenging issues for the land vehicle navigation, while most current in-motion alignment methods still rely on the measure
Externí odkaz:
https://doaj.org/article/8bdc2a66ba81494cad567e4b62def1b1
Publikováno v:
Sensors, Vol 22, Iss 1, p 209 (2021)
Pedestrian Navigation System (PNS) is one of the research focuses of indoor positioning in GNSS-denied environments based on the MEMS Inertial Measurement Unit (MIMU). However, in the foot-mounted pedestrian navigation system with MIMU or mobile phon
Externí odkaz:
https://doaj.org/article/bda93cab800e475fb584f7241195517a
Publikováno v:
Sensors, Vol 21, Iss 15, p 5055 (2021)
In the field of high accuracy strapdown inertial navigation system (SINS), the inertial measurement unit (IMU) biases can severely affect the navigation accuracy. Traditionally we use Kalman filter (KF) to estimate those biases. However, KF is an unb
Externí odkaz:
https://doaj.org/article/37a4e84be48f44d49b9492cdb217efad
Publikováno v:
Sensors, Vol 18, Iss 2, p 670 (2018)
According to the application characteristics of the K-Rb-21Ne comagnetometer, a space-stable navigation mechanization is designed and the requirements of the comagnetometer prototype are presented. By analysing the error propagation rule of the space
Externí odkaz:
https://doaj.org/article/2f161f72b6f642e5a1be353491558419
Publikováno v:
Sensors, Vol 16, Iss 12, p 2019 (2016)
In recent years, with the emergency of high precision inertial sensors (accelerometers and gyros), gravity compensation has become a major source influencing the navigation accuracy in inertial navigation systems (INS), especially for high-precision
Externí odkaz:
https://doaj.org/article/ab0bc1e846ee4d2daa15f9a865f86da4