Getting It Better
While RTK positioning and attitude determination is readily done with high-end equipment, it is still a challenge to get good results for kinematic platforms with low-cost receivers. In this month’s column, we learn how a team of researchers in France is trying to do just that.
Fusing Automotive Radar and OBD-II Speed Measurements with Fuzzy Logic
The authors discuss how fuzzy logic can be used to get a reliable speed estimate from radar and standard onboard vehicle data, and how these estimates can be combined with inertial measurements and GPS-derived position and velocity in an extended Kalman filter to produce an integrated navigation solution.
Getting the Best in Both WorldsGPS alone won’t cut it. Thankfully, other navigation sensors can be used to supplement or replace GNSS when the going gets tough for GPS alone.
Smaller and BetterIn this GPS World 30th anniversary issue Innovation column, we look at the design and performance of an antenna that offers high performance even in challenging environments in a relatively small package.
An approach using precise point positioningA team of authors from Stanford University discusses a superior approach for ARAIM using the technique of precise point positioning.
A key feature of a new high-accuracy GNSS correction serviceThe design, construction, operation and performance of the first safety-critical, high-accuracy augmentation service for autonomous applications.
A Tidal ShiftTraditional tide gauges are in contact with the water surface and as a result are susceptible to measurement error and damage during extreme weather. An alternative approach is the use of GNSS reflectometry. We learn how this innovative use of satellite navigation signals works in this month’s Innovation column.
Autonomous Driving Guidance
GNSS chip manufacturers and positioning systems developers are working on bespoke devices for autonomous driving. This month, we look at a development with embedded functional safety.
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