TW5365 Multi-Constellation Smart GNSS Antenna with UDR

The TW5365 is a multi-constellation GNSS Receiver/Antenna
fused with inertial sensor data. It is an easy-to-use tracking
solution that enables high performance positioning in places
where GNSS signals are poor or not available.

The TW5365 incorporates a latest generation GNSS receiver that
supports simultaneous GPS/GLONASS/Galileo reception and a
Tallysman’s Accutenna™ patch antenna. This dual feed antenna
greatly improves rejection of multi-path signal interference,
making it the most precise antenna for tracking in dense urban
environments.

Untethered Dead Reckoning (UDR)
TheTW5365 Untethered Dead Reckoning (UDR) technology
provides continuous navigation without requiring speed
information from the vehicle. This innovative technology brings
the benefits of dead reckoning to installations previously
restricted to using GNSS alone, significantly reducing the cost of
installation for Dead Reckoning applications.

The strength of UDR is particularly apparent under poor signal
conditions, where it brings continuous positioning in urban
environments, even when the antenna is installed within the
vehicle. Useful positioning performance is also available during
complete signal loss, for example in parking garages or short
tunnels. UDR positioning starts as soon as the ignition signal is
applied and before the first GNSS fix is available.

The TW5365 may be installed in any position in a vehicle without
electrical connection to the vehicle speed sensor. The on-board
accelerometer and gyroscope sensors result in a self-contained
UDR which is self calibrating and provides reliable and consistent
navigation.

A Timepulse output generates pulse trains synchronized with
GPS or UTC time grid with intervals configurable over a wide
frequency range.