TAG: ionospheric disturbance

Research Online: Positioning with LTE signals

November 12, 2015By

Positioning with LTE Signals An alternative to GNSS in urban canyons can be provided by signals from cellular base stations, particularly new signals from long-term evolution (LTE) networks, since LTE coverage will be high in cities. Wide LTE downlink bandwidth provides good resolution of multipath components, which also assists positioning. A test used a universal software radio peripheral N210 synchronized... read more

Septentrio Launches UAS Receiver, Software for Drone Market

May 4, 2015By

Septentrio has launched the AsteRx-m UAS, an RTK-accurate GNSS receiver solution specially designed for the drone market. The AsteRx-m UAS provides high-accuracy GNSS positioning with low power consumption, according to Septentrio. The launch of the AsteRx-m UAS board is complemented by the release of GeoTagZ software suite. The GeoTagZ suite works with the UAS camera and image-processing solution to provide centimeter-accurate position... read more

GPS Data Show How Nepal Quake Disturbed Earth’s Upper Atmosphere

May 2, 2015By

The April 25 magnitude 7.8 earthquake in Nepal created waves of energy that penetrated into Earth’s upper atmosphere in the vicinity of Nepal, disturbing the distribution of electrons in the ionosphere. These disturbances were monitored using GPS signals received by a science-quality GPS receiver in Tibet, a neighboring region to Nepal. The data show that after the initial earthquake rupture (indicated... read more