Results 161 to 170 of about 2,715 (189)

Kalman filter–based RAIM for GNSS receivers

IEEE Transactions on Aerospace and Electronic Systems, 2015
A receiver autonomous integrity monitoring (RAIM) algorithm is presented for extended Kalman filter (EKF)-based global navigation satellite system receivers. To this end, a novel method to bound the EKF mean position error is developed under the assumption of step and ascending ramp fault profiles.
Susmita Bhattacharyya, Demoz Gebre-Egziabher   +1 more
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Raim Hakimzoda Farkhadi: Author–Uzbekistan

Bookbird: A Journal of International Children's Literature, 2023
Abstract: "I've come up with a formula for myself; it is to write as for adults, but even better, in a language that is understandable to children as much as possible, to speak to them as equals, to be their peer. But without a big heart, sympathizing, and empathizing, it is impossible to achieve that.
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Raimes, Helen: A Taste of Perigord

Petits Propos Culinaires, 1991
Raimes, Helen: A Taste of Perigord, Robert Hale, London, 1991: 192 pp, black and white drawings, index, £16.95. 
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Relative RAIM Based on IMM

2012
With the definitude of the GNSS integrity requirement and the development of the integrity augmentation technology, GNSS integrity augmentation technology has developed a whole integrity solution from Satellite Based Augmentation System (SBAS), Ground Based Augmentation System (GBAS) to Airplane Based Augmentation System (ABAS) today.
Rui Li, Xinyuan Zhang, Zhigang Huang
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The Effect of Terrain Mask on RAIM Availability

Journal of Navigation, 2009
Receiver Autonomous Integrity Monitoring (RAIM) is a method, used by an aircraft's receiver, for detecting and isolating faulty satellites of the Global Navigation Satellite System (GNSS). In order for a receiver to be able to detect and isolate a faulty satellite using a RAIM algorithm, a couple of conditions must be met: a minimum number of ...
Radišić, Tomislav, Novak, Doris, Bucak, Tino   +2 more
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GDOP and RAIM in Differential Operation

Navigation, 2001
: Familiar matrix forms customarily used in evaluating the performance of satellite geometries for receiver autonomous integrity monitoring (RAIM) need modification for differential applications. When positions are determined through differencing across satellites, usage of a common space vehicle (SV) produces correlations.
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Implementation and Evaluation of GPS/GLONASS RAIM

The International Technical Meeting of the The Institute of Navigation, 2019
Current aviation primarily utilizes the GPS constellation for aircraft navigation; however, the aviation community plans to utilize additional GNSS constellations as more constellations become available with guaranteed performance standards. As a result, multi-constellation airborne navigation requires changes to Receiver Autonomous Integrity ...
Natasha Norris, Frank van Graas, Eric Vinande   +2 more
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RAIM Availability for Supplemental GPS Navigation

Navigation, 1992
This paper examines GPS receiver autonomous integrity monitoring (RAIM) availability for supplemental navigation based on the approximate radial-error protection (ARP) method. This method applies ceiling levels for the ARP figure of merit to screen out bad detection geometries under worst-case bias conditions.
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RAIM Algorithm Based on Residual Separation

2017
With the rapid development of Global Navigation Satellite Systems (GPS, BDS, GALILEO and GLONASS), the number of available satellites is increasing. The redundancy of GNSS is enhanced. This will offer the possibility of realizing receiver fault detection and exclusion (FDE). Due to factors such as satellite fault and strong electromagnetic interference,
Zhaoyang Li, Qingsong Li, Jie Wu
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An Evaluation of the Advanced RAIM Threat Model

2023 IEEE/ION Position, Location and Navigation Symposium (PLANS), 2023
Juan Blanch, Todd Walter
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