Spirent Introduces GLONASS CDMA Signals into its Market-leading GNSS Simulators
Russia’s GLONASS global navigation satellite system (GNSS) is modernizing, and receiver developers will need to accommodate a shift in the way its satellites broadcast signals. Today, the 24 operational satellites of the GLONASS constellation broadcast using frequency division multiple access (FDMA). Each individual satellite broadcasts on a slightly different frequency, allowing a receiver to understand […]
Mia Swain | Oct 2021
Tags: CDMA, GLONASSSpirent Debuts GNSS Reliability Forecasting for UAS and Self-Driving Cars
Unreliable GNSS reception is a major barrier to safe navigation for drones and self-driving cars. A new GNSS reliability forecasting service from Spirent tackles the problem.
Jeremy Bennington | Sep 2021
Tags: Autonomous Vehicles, UASReliable GNSS Positioning in Urban Areas: A Key Technical Challenge for Drones and Self-Driving Cars
Signal reception is one of the big technological challenges of the modern age. Today, it’s mostly thought of as a telecoms issue. If someone complains that their smartphone has ‘lost reception’, they’re most likely referring to a loss of cellular signal. And the chances are it’s because they’re in a rural location, far from any […]
Jeremy Bennington | Jun 2021
Tags: GPS Interference, Multi-constellation GNSSLigado Controversy Highlights Risk of Adjacent Band Interference to GPS Receivers
GPS users should assess the threats posed by adjacent band interference and mitigate any risks.
Guy Buesnel | May 2021
Tags: GPS Interference, GPS ReceiversNavigation Beyond Visual Line of Sight: The Next Big Challenge for UAV Developers
Regulators are preparing to certify UAVs to fly beyond the operator’s line of sight. A reliable positioning engine will be essential for safe, accurate navigation.
Adam Price | Apr 2021
Tags: GPS Interference, Multipath