Open Access
GPS and Inertial Integration
TLDR
This chapter devotes one section to address each of the following questions: how complex are the integration algorithms required to provide the desired level of performance, with options for growth to meet future requirements?Abstract:
T HE Global Positioning System (GPS) and inertial navigation systems (INS) have complementary operational characteristics. Even a modest attempt to combine their functionality in an integrated navigation system can produce a system performance superior to either one acting alone. However, because of the costs of such benefits, it is fitting to inquire about trade-offs that would justify the investment. Trade studies typically address the following questions: 1) What benefits of GPS/inertial integration are important in the application being considered? 2) What configuration of data paths (integration architecture) is appropriate for the application? 3) How complex are the integration algorithms required to provide the desired level of performance, with options for growth to meet future requirements? This chapter devotes one section to address each one of these questions. Because of space limitations, the presentation is qualitative, with only limited recourse to the underlying mathematical structures required to understand integration filtering and the performance evaluation of an integrated navigation system. Wherever possible, the reader is directed to other chapters in this text for those details, or to the literature. Furthermore, the properties of GPS user equipment (UE) and inertial navigation systems cited here are generic rather than specific, and they are representative of technology circa 1993.read more
Citations
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Journal Article
Global Positioning System : Theory and Applications I
TL;DR: Differential GPS and Integrity Monitoring differential GPS Pseudolites Wide Area Differential GPS Wide Area Augmentation System Receiver Autonomous Integrity Monitoring Integrated Navigation Systems Integration of GPS and Loran-C GPS and Inertial Integration Receiver Aut autonomous Integrity Monitoring Availability for GPS Augmented with Barometric Altimeter Aiding and Clock Coasting
Book
Global positioning system : theory and applications
TL;DR: Differential GPS and Integrity Monitoring Differential GPS Pseudolites Wide Area differential GPS Wide Area Augmentation System Receiver Autonomous Integrity Monitoring Integrated Navigation Systems Integration of GPS and Loran-C GPS and Inertial Integration Receiver Autonomic Integrity Monitoring Availability for GPS Augmented with Barometric Altimeter Aiding and Clock Coasting GPS and Global Navigation Satellite System (GLONASS) GPS Navigation Applications Land Vehicle Navigation and Tracking Marine Applications Applications of the GPS to Air Traffic Control GPS Applications in General Aviation Aircraft Automatic Approach and Landing of Aircraft Using Integrity Beacons Spacecraft Attitude
Journal ArticleDOI
Local area augmentation of GPS for the precision approach of aircraft
TL;DR: The LAAS will improve the airborne accuracy from approximately 100 m for stand-alone GPS to better than 1 m, which is required so that LAAS can guarantee the integrity and continuity of the aircraft guidance during the approach phase of flight.
Proceedings ArticleDOI
The role of dead reckoning and inertial sensors in future general aviation navigation
Z. Berman,J.D. Powell +1 more
TL;DR: An original statistical model for wind variations that matches actual data very well is presented and horizontal position errors during a GPS outage are compared for a variety of configurations: a dead reckoning system, stand alone inertial sensors and inertial sensor integrated with the dead reckoningsystem.
Journal ArticleDOI
Carrier loop architectures for tracking weak GPS signals
TL;DR: It is shown that for PLLs the metric of total phase jitter is a reliable metric for assessing low C/N performance of the tracking loop provided the loop bandwidth is not too small, and for FLLs operating at small loop bandwidths it is found that normalized total frequency jitters is not a reliable metrics for assessing loss of lock in weak signal or low C-N conditions.
References
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Book
Applied Optimal Estimation
TL;DR: This is the first book on the optimal estimation that places its major emphasis on practical applications, treating the subject more from an engineering than a mathematical orientation, and the theory and practice of optimal estimation is presented.
Journal ArticleDOI
Federated square root filter for decentralized parallel processors
TL;DR: An efficient, federated Kalman filter is developed for use in distributed multisensor systems, which achieves a major improvement in throughput, is well suited to real-time system implementation, and enhances fault detection, isolation, and recovery capability.
Journal ArticleDOI
GPS Interferometric Attitude and Heading Determination: Initial Flight Test Results
TL;DR: Methods and results for realtime pitch, roll, and heading determination of a dynamic flexible platform proves its candidacy for augmentation of aircraft state estimation for flight control and navigation as well as for numerous other applications, such as reliable aircraftstate estimation.