Patent
System and method for wireless collaborative verification of global navigation satellite system measurements
TLDR
In this article, the authors present a fault detection system for verifying the quality of global navigation satellite system (GNSS) measurements, which includes a GNSS receiver, a wireless communications device, and a fault detector.Abstract:
Systems and methods are disclosed herein for verifying the quality of global navigation satellite system (GNSS) measurements. The system includes a GNSS receiver, a wireless communications device, and a fault detection processor. The GNSS receiver includes a GNSS antenna for receiving signals from a plurality of global navigation satellites and a processor for calculating a ranging measurement for each of the global navigation satellites from the GNSS receiver to the global navigation satellite. The wireless communications device receives ranging measurements from at least one other GNSS receiver. The fault detection processor performs a fault detection algorithm to determine if there is an anomaly affecting the ranging measurements of the GNSS receiver and the at least one other GNSS receiver.read more
Citations
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Patent
Generating a location in a vehicle-to-vehicle communication system
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TL;DR: In this article, the phase error between two or more GNSS constellation signals is measured using an internal time source such as a crystal oscillator by monitoring a slope of the free running counter at the detected rising edges of a pulse-per-second signal.
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TL;DR: In this paper, the failure of a GNSS-based precision time source based on a calculated location of the GNSS receiver is discussed. And the system can be configured to distribute a time derived from the precision source as a precision time reference to time dependent devices.
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TL;DR: In this paper, the failure of a GNSS-based precision time source based on a calculated location of the GNSS receiver is discussed. And the system can be configured to distribute a time derived from the precision source as a precision time reference to time dependent devices.
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System and method for determining the direction of a false GNSS satellite signal transmitter
TL;DR: In this article, a method for determining the direction of a false Global Navigation Satellite System (GNSS) satellite signal transmitter is presented, where a plurality of range differences is computed, where each range difference is the difference between a range from a first GNS satellite to a first GNSS antenna, and the range from the first GGSs satellite to the second GNSS antennas.
References
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Patent
Gnss navigation solution integrity in non-controlled environments
Nestor Zarraoa Lopez,Juan Ramon Martin Piedelobo,Manuel Toledo Lopez,Joaquin Cosmen Schortmann +3 more
TL;DR: In this article, the authors proposed a method for providing a Global Navigation Satellite System (GNSS) navigation position solution with guaranteed integrity in non-controlled environments, the method including processing a GNSS signal including multiple satellites generating at least one signal to obtain carrier phase and pseudorange measurements; pre-processing the measurements to detect and characterize local errors in the measurements, wherein the local errors cannot be ascertained a priori, the characterization including providing error bounds estimated by measuring the carrier phases and pseudoranges measurements, thereby providing a set of measurements rejections when the characterization is not possible
Patent
Satellite based positioning
Hanna Sairo,Jari Syrjärinne +1 more
TL;DR: In this article, the authors propose an API 70 that supports a communication between a GNSS receiver and a wireless communication module (WMC) and a positioning server can forward information from one assembly to the other or take care of the position computations for assemblies.
Patent
A network for code phase differential gps corrections
TL;DR: In this article, the authors proposed a method for providing GPS pseudorange correction information over a selected geographic region S with a diameter as large as 3000 km and with an associated inaccuracy no greater than 100-200 cm.
Patent
Method for improving GPS integrity and detecting multipath interference using inertial navigation sensors and a network of mobile receivers
Michael Moser,Arne Dietrich +1 more
TL;DR: In this article, a method for checking the integrity of GPS measurements for a moving vehicle includes determining a first inter-vehicle distance between a first vehicle and a second vehicle based on GPS measurements obtained at both vehicles, independently determining a second inter-Vehicle distance based on relative motion of the first vessel and the second vehicle obtained using INS sensors at both vessels, and comparing the first and second intervehicle distances.
Patent
Methods and apparatus to detect and correct integrity failures in satellite positioning system receivers
TL;DR: In this article, a method for detecting integrity failures in satellite position system (SPS) receivers is described. But this method relies on estimating a position fix from a plurality of pseudo ranges and computing a zero-mean error vector based on the position fix.