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821
Characterization of a Continuous Beam Cold Atom Ramsey Interferometer
Published 2023-03-01“…The use of atom interferometers in inertial systems holds the promise of improvement of several orders of magnitude in sensitivity over sensors using current technology such as micro-electro-mechanical (MEMS) devices or ring laser gyroscopes (RLGs). This paper describes the construction and characterization of an atomic interferometry system for eventual use in a dual-atom-beam accelerometer/gyroscope sensor. …”
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822
Drift-Free Position Estimation of Periodic or Quasi-Periodic Motion Using Inertial Sensors
Published 2011-05-01“…Position sensing with inertial sensors such as accelerometers and gyroscopes usually requires other aided sensors or prior knowledge of motion characteristics to remove position drift resulting from integration of acceleration or velocity so as to obtain accurate position estimation. …”
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Article -
823
Early Improper Motion Detection in Golf Swings Using Wearable Motion Sensors: The First Approach
Published 2013-06-01“…This analysis is conducted using a golfer’s leading arm kinematic data, which are obtained from a golfer wearing a motion sensor that is comprised of gyroscopes and accelerometers. Applying the principal component analysis (PCA) to the reference observations of properly performed swings, the PCA components of acceptable swing motion deviations are established. …”
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824
Design and Characterization of a Fully Differential MEMS Accelerometer Fabricated Using MetalMUMPs Technology
Published 2013-05-01“…The findings in the presented work will provide useful information for design of sensors and actuators such as accelerometers, gyroscopes and electrothermal actuators that are to be fabricated using MetalMUMPs technology.…”
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825
Self-Localization of Tethered Drones without a Cable Force Sensor in GPS-Denied Environments
Published 2021-11-01“…The proposed approach uses the data reported by the onboard electric motors (i.e., the pulse width modulation (PWM) signals), accelerometers, gyroscopes, and altimeter, embedded in the commercial-of-the-shelf (COTS) inertial measurement units (IMU). …”
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Article -
826
Effects of residual stresses on the stiffness of MEMS structures
Published 2009“…In applications where a ultrasonic sensor between a structure and the substrate is used for measurements this bowing may be a source of error, as in tuning fork gyroscopes. Additionally, as the temperature of the component changes the curvature in the die also changes, decreasing while approaching the bonding temperature. …”
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Final Year Project (FYP) -
827
Rapid satellite attitude control using control moment gyros
Published 2009“…There are several methods of controlling the satellite using thrusters, momentum wheels, reaction wheels, magnetic torquers and control moment gyroscopes (CMG). While the usage of the above mentioned systems depends on the type of mission the satellite undertakes, this project focuses on understanding the functioning of CMGs. …”
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Final Year Project (FYP) -
828
Elderly assisted living system
Published 2015“…The concept is to record the coordinate and speed of the object by using an inertial sensor which have the function of Accelerometers and Inertial gyroscopes. The recorded data will then be used to judge whether an object is falling or moving around. …”
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Final Year Project (FYP) -
829
Parametric excitation of optomechanical resonators by periodical modulation
Published 2018“…This demonstration will provide a new way to excite mechanical resonators and benefit practical applications, such as optical mass sensors and gyroscopes with an extended working range.…”
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Journal Article -
830
Wavelet-based pre-filtering for low cost inertial sensors
Published 2010“…The proposed multi-level decomposition was applied to real accelerometer and gyroscopes data obtained from MEMS IMU (MotionPak II). …”
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Article -
831
Gyro-Free Inertial Navigation Systems Based on Linear Opto-Mechanical Accelerometers
Published 2023-04-01“…Compared to other technologies such as MEMS-based inertial sensors and optical gyroscopes, the high-frequency opto-mechanical accelerometer exhibits better performance than tactical-grade MEMS for time scales shorter than 10 s. …”
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Article -
832
Smartphone User Identity Verification Using Gait Characteristics
Published 2016-09-01“…We propose a method for positive identification of smartphone user’s identity using user’s gait characteristics captured by embedded smartphone sensors (gyroscopes, accelerometers). The method is based on the application of the Random Projections method for feature dimensionality reduction to just two dimensions. …”
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Article -
833
Performance Analysis of Deep Learning based Human Activity Recognition Methods
Published 2022-10-01“…A HAR system is essentially made of a wearable device equipped with a set of sensors (like accelerometers, gyroscopes, magnetometers, heart-rate sensors, etc.). …”
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834
Multifunctional Integration of Optical Fibers and Nanomaterials for Aircraft Systems
Published 2023-02-01“…This manuscript reports the multifunctional integration of optical fibers and nanomaterials for aircraft sector discussing topics, such as airframe monitoring, flight environment sensing (from temperature and humidity to pressure sensing), sensors for navigation (such as gyroscopes and displacement or position sensors), pilot vital health monitoring, and novel nanomaterials for aerospace applications. …”
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835
Real-time observation of the optical Sagnac effect in ultrafast bidirectional fibre lasers
Published 2020-01-01“…The optical Sagnac effect sets fundamentals of the operating principle for ring laser and fiber optic gyroscopes, which are preferred instruments for inertial guidance systems, seismology, and geodesy. …”
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836
An Enhanced MEMS Error Modeling Approach Based on Nu-Support Vector Regression
Published 2012-07-01“…Experimental results proved that the proposed SVM approach reduced the noise standard deviation by 10–35% for gyroscopes and 61–76% for accelerometers. Further, positional error drifts under static conditions improved by 41% and 80% in comparison to NN and GM approaches.…”
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Article -
837
A simple Hierarchical Activity Recognition System Using a Gravity Sensor and Accelerometer on a Smartphone
Published 2016-07-01“…The most common sensors used for this purpose are accelerometers and gyroscopes; however, we found out that a gravity sensor has significant potential to be utilized as well. …”
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Article -
838
Accuracy Improvement of Attitude Determination Systems Using EKF-Based Error Prediction Filter and PI Controller
Published 2020-07-01“…The method, inspired from the recognition of gyroscope’s error and by a proportional integral (PI) controller, can be regulated to increase the accuracy of the prediction. …”
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Article -
839
A novel method to eliminate the symmetry dependence of fiber coils for shupe mitigation
Published 2024-04-01“…Abstract It is a well-known fact that interferometric fiber optic gyroscopes (IFOGs) are easily distorted by thermal effects and distortion results in the degradation of the performance of these sensors. …”
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Article -
840
Vacuum Packaging Requirements for MEMS and Characterization Techniques
Published 2020-12-01“…The pressure requirements of some hermetically packaged microelectromechanical systems (MEMS) devices, such as gyroscopes, accelerometers, infrared (IR) bolometers, and digital mirrors, are very stringent. …”
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Article