Journal ArticleDOI
Unified approach to ultra-tightly-coupled GPS/INS integrated navigation system
TLDR
A unified approach to the ultra-tightly coupled GPS/INS Integrated navigation system works well and gives accurate navigation output with anti-jamming capability.Abstract:
A unified approach to the ultra-tightly coupled GPS/INS Integrated navigation system is proposed. It is shown that other methods of ultra-tightly coupled GPS/INS integrated navigation systems are included in the proposed framework, and some implementation issues are discussed. In order to show the validity of the proposed approach, position accuracy and anti-jamming capabilities of three methods of ultra-tightly-coupled GPS/INS integration system, included in the proposed framework, were compared. The comparisons were carried out through computer simulations and post-processing of data from a GNSS hardware simulator. The results show that the proposed approach works well and gives accurate navigation output with anti-jamming capability.read more
Citations
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Journal ArticleDOI
High-rate precise point positioning (PPP) to measure seismic wave motions: an experimental comparison of GPS PPP with inertial measurement units
TL;DR: In this paper, an experimental platform was built to evaluate the accuracy of 50-Hz PPP displacement waveforms and found that high-rate PPP can produce absolute horizontal displacement waveform at the accuracy 2-4mm and absolute vertical displacement waveframe at the sub-centimeter level of accuracy within a short period of time.
Journal ArticleDOI
Gaussian Smoothers for Nonlinear Systems With One-Step Randomly Delayed Measurements
TL;DR: This technical note is concerned with the nonlinear state smoothing problem in the case that the measurements are randomly delayed by one sampling time, and two general Gaussian approximation and Gaussian mixture approximation smoothers are proposed in minimum mean square error (MMSE) sense.
High-rate precise point positioning (PPP) to measure seismic wave motions: An experimental comparison of GPS PPP with inertial measurement units
TL;DR: The significance of the experiments indicates that high-rate PPP is capable of detecting absolute seismic displacement waveforms at the same high accuracy as GPS relative positioning techniques, but requires no fixed datum station.
Journal ArticleDOI
Real-Time 3D Motion Tracking and Reconstruction System Using Camera and IMU Sensors
Changdi Li,Lei Yu,Shumin Fei +2 more
TL;DR: The qualitative and quantitative experimental results indicate the proposed 3D motion tracking and reconstruction system on a mobile device using camera and inertial measurement unit (IMU) sensors based on sliding window filter (SWF) has much better performance than existing methods inmotion tracking and 3D reconstruction models.
Journal ArticleDOI
Robust Adaptive Cubature Kalman Filter and Its Application to Ultra-Tightly Coupled SINS/GPS Navigation System.
TL;DR: The proposed robust adaptive cubature Kalman filter can detect the degree of gross error and subsequently process it, so the influence produced by the abnormality error can be solved and the stable and high-precision tracking for GPS satellite signals are preferably achieved.
References
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Proceedings ArticleDOI
A deeply integrated adaptive GPS-based navigator with extended range code tracking
TL;DR: This paper presents a new approach to GPS-based navigation which offers significant improvement in antijam capability over traditional designs and results of hardware-in-the-loop simulations are presented which demonstrate improvements of 15 dB or more.
Book
Integrated Navigation and Guidance Systems
TL;DR: Principles of Navigation and the Concept of an Integrated Navigation System Newton's Laws Applied to Navigation, Inertial Navigation Systems, and Global Positioning System Uncertainty in Navigation, INS Error Propagation, Probabilities, Autocorrelation and the Method of Least Squares
Performance Analysis of an Ultra-Tightly Integrated GPS and Reduced IMU System
TL;DR: In this article, the authors investigated using a reduced order IMU in an ultra-tight GPS/IMU receiver, where two horizontal accelerometers and one vertical gyro are considered.
Novel positioning algorithms for RFID-assisted 2D MEMS INS systems
TL;DR: In this article, a novel RFID-assisted scaling correction algorithm is introduced to determine the scaling correction parameters of the 2D MEMS inertial navigation system (INS) and two correction parameters, including offset correction and scaling correction, are introduced to correct the positioning results.
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