November/December 2020
Online News, Articles, and Features
Subscribe to the print edition for free.
Global Navigation Satellite Systems Engineering, Policy, and Design
Global Navigation Satellite Systems Engineering, Policy, and Design
A new methodology targets sub-meter GNSS accuracies in the consumer realm for applications such as augmented reality and visually impaired navigation. Recent Android RTK smartphone services in a real-time environment achieve accuracies below 50 cm. Can these be matched with PPP?
Three different low-cost sensor integrations, covering vehicle navigation in a range of environments, were explored and explained in the February webinar, “Automotive-Grade GNSS + Inertial for Robust Navigation.” The full webinar, slides and audio, is available for download now.
Knowledge gained in close study of post-processed GNSS/INS data from very high-dynamic aerial maneuvers can improve position monitoring in machine control, precision agriculture and other industrial applications.
After years of delay, we see movement toward a back-up service for PNT and ensuring that critical infrastructure owners and operators take steps to limit vulnerabilities.
Galileo Through the Lenses of Money, Defense, Brexit and Unfortunate Events
The year of our European correspondent generally begins with two predictive events: the ESA New Year press breakfast in Paris and the EU Space Policy Conference in Brussels. It’s a tough job but somebody’s got to do it.
The Federal Communications Commission ignored a technical standard defining radio-frequency interference. The five commissioners licensed powerful terrestrial broadcast next to the satellite band, exposing national defense and critical infrastructure to harm.
An on-board spoofing detection unit collects metrics from the GNSS signal processing chain and provides a real-time indication if the receiver is under spoofing attack. Test results from several spoofing scenarios are based on GNSS hardware simulations, repeaters and software-defined radios.
