Global Navigation Satellite Systems Engineering, Policy, and Design
In a demonstration of new services that NextGen TV can offer, BitPath, CAST.ERA and ONE Media publicly trialed “Enhanced GPS” broadcasts that could provide a tool for autonomous vehicle navigation and other applications.
By Inside GNSS
A new approach to achieving the safety needed for levels 3 and higher of autonomy builds on a thorough mathematical framework to support safety analysis, while delivering very tight position bounds.
A novel method to track Galileo E5 AltBOC signal phase adjusts and then combines the correlation results of the upper sideband and lower sideband signal to form a double-sideband correlation result, which is equivalent to AltBOC wideband receiving to some extent. Thus, a Galileo E5 wideband receiver can be achieved with only minor modification to a traditional GNSS single-sideband receiver. The method can be further applied to other binary offset carrier (BOC) signals.
By Inside GNSS
The Government Accounting Office (GAO) has issued a 51-page report examining the challenges the Department of Defense faces in developing and fielding new positioning, navigation and timing (PNT) technologies to complement, augment or replace GPS when it is unavailable. It found that the DOD is not doing enough in this regard.
By Inside GNSS
South of Stockholm, Sweden, the new Haninge Bus Terminal has been equipped with SubWAVE GPS Coverage Extension from Syntony.
By Inside GNSS
SAM PULLEN, Stanford University
A: Since at least 1997, the Global Positioning System (GPS) Control Segment (CS) has issued what are known as “Notice Advisor(ies) to NAVSTAR Users” or “NANU(s).”
By Inside GNSS
Multi-antenna carrier-phase differential GNSS (CDGNSS)-based pose (position and orientation) estimation aided by monocular visual measurements and a smartphone-grade inertial sensor form the core of a system designed for micro aerial vehicles. It can be applied generally for low-cost, lightweight, high-accuracy, geo-referenced pose estimation.
A consortium is preparing to ramp up production of Geonav IoT, a seamless indoor/outdoor positioning solution for sports applications, asset tracking and aiding drone traffic management. The GNSS module is a high-accuracy, dual-frequency system-on-chip with an integrated, low-power application processor.
Official broadcast for testing of the Galileo High Accuracy Service (HAS) has begun. Users equipped with a receiver that is capable of acquiring this signal and extracting its data content can start observing and testing specific aspects of the HAS service
By Inside GNSS
Gimbal, a location intelligence platform, and NextNav, a 3D geolocation provider, have partnered to makes the vertical dimension – the Z-axis – available for brands and retailers within their mobile applications.
By Inside GNSS
Murata has developed a new micro-electromechanical systems (MEMS) six degrees-of-freedom (6DoF) inertial sensor, the SCHA63T, for autonomous off-highway vehicles, dynamic inclination sensing and GNSS positioning support.
By Inside GNSS
Incidents of GNSS signals that contain phase anomalies in a way as to mimic ionospheric scintillation have been observed in the past years. Although it is challenging to differentiate an oscillator anomaly from ionospheric scintillation, their underlying physics are different and show different carrier frequency dependency. Machine learning models using extensive GNSS databases can automatically detect satellite oscillator anomaly events.
By Inside GNSS
EMCORE Corporation received a $1.1 million development contract from a major U.S. prime contractor to design and manufacture a high-end inertial measurement unit (IMU) for tactical intelligence and reconnaissance systems.
By Inside GNSS
