Results 1 to 10 of about 4,457,973 (186)

Study on the Dynamics of Laser Gyro Strapdown Inertial Measurement Unit System Based on Transfer Matrix Method for Multibody System

Advances in Mechanical Engineering, 2013
The dynamic test precision of the strapdown inertial measurement unit (SIMU) is the basis of estimating accurate motion of various vehicles such as warships, airplanes, spacecrafts, and missiles.
Gangli Chen, Xiaoting Rui, Fufeng Yang, Jianshu Zhang, Qinbo Zhou   +4 more
doaj   +3 more sources

Atom Strapdown: Toward Integrated Quantum Inertial Navigation Systems [PDF]

Navigation, 2023
We present an alternative technique for estimating the response of a cold atom interferometer (CAI). Using data from a conventional inertial measurement unit (IMU) and common strapdown terminology, the position of the atom wave packet is tracked in a ...
Benjamin Tennstedt, Ashwin Rajagopalan, Nicolai B. Weddig, Sven Abend, Steffen Schön, Ernst M. Rasel   +5 more
doaj   +2 more sources

Attention-guided temporal convolutional pseudo-velocity generation for underwater inertial/Doppler navigation [PDF]

Scientific Reports
Doppler velocity log (DVL) outages can rapidly degrade loosely coupled inertial/Doppler navigation for autonomous underwater vehicles, especially in deep water or over complex seabed terrain. This study presents an attention-guided temporal convolutional
Caiqin Jia, Guoxiang Wang, Xingcheng Han, Ling Wang, Shengwen Gao   +4 more
doaj   +2 more sources

Heave Motion Estimation on a Craft Using a Strapdown Inertial Measurement Unit [PDF]

IFAC Postprint Volumes IPPV / International Federation of Automatic Control, 2013
Abstract This paper deals with heave position and heave velocity estimation on a craft. The estimation is done without any knowledge of the specified craft. An accurate estimation of these signals is useful when one wants to control or monitor the heave motions on a platform or a ship such as in a active heave compensated systems.
Tommy Gravdahl, Thor I Fossen
exaly   +3 more sources

MEMS strapdown inertial attitude measurement system using rotational modulation technology. [PDF]

PLoS ONE
Attitude determination involves the integration of methodologies and systems for estimating the time varying attitude of moving objects. Strapdown Inertial Attitude Measurement System (SIAMS) is among the most widely used navigation systems.
Wei Sun, Heng Huang, Peilun Sun, Wei Ding   +3 more
doaj   +2 more sources

New Results from Strapdown Airborne Gravimetry Using Temperature Stabilisation

Remote Sensing, 2019
In recent years, the use of a strapdown Inertial Measurement Unit (IMU) for airborne gravimetry has proven itself to be an accurate and resilient measurement system, improving the operational flexibility.
Tim E. Jensen, Arne V. Olesen, Rene Forsberg, Per-Anders Olsson, Örjan Josefsson   +4 more
doaj   +3 more sources

Velocity-Aided Navigation in GNSS-Denied Environments [PDF]

Sensors
The Velocity-Aided Navigation (VAN) method for determining latitude, longitude, and altitude is proposed when global navigation satellite system (GNSS) signals are unavailable.
Vadym Avrutov, Nadiia Bouraou, Oleg Nesterenko, Sergii Holovach, Oleksii Hehelskyi, Olha Pazdrii   +5 more
doaj   +2 more sources

Enhanced Dual-Axis Rotation Modulation Scheme for Inertial Navigation Systems Using a 64-Position Approach [PDF]

Sensors
Rotational modulation improves strapdown inertial navigation system (SINS) by periodically reorienting the inertial measurement unit (IMU) to convert slowly varying sensor errors into manageable, cancelable components. However, existing dual-axis schemes
Hongmei Chen, Zhaoyang Wang, Han Sun, Dongbing Gu, Cunxiao Miao, Wen Ye   +5 more
doaj   +2 more sources

A Train Factor Graph Fusion Localization Method Assisted by GRU-IBiLSTM for Low-Cost SINS/GNSS [PDF]

Sensors
The integrated strapdown inertial navigation system (SINS)/global navigation satellite system (GNSS) has been widely adopted in railway positioning applications.
Cheng Chen, Guangwu Chen, Xinye Ma
doaj   +2 more sources

Using Functionally Redundant Inertial Measurement Units to Increase Reliability and Ensure Fault Tolerance

Inventions, 2023
This paper aims to assess the possibility of using functionally redundant inertial units to solve problems of increasing reliability and ensuring the fault tolerance of the various classes and purposes of aircraft navigation systems.
Ivan M. Kuznetsov, Konstantin K. Veremeenko, Maxim V. Zharkov, Andrey N. Pronkin   +3 more
doaj   +1 more source