Tallysman provides AccuAuto embedded GNSS antennas for autonomous autos

Photo: Tallysman

Tallysman Wireless has added a range of AccuAuto vehicle antennas for the autonomous vehicle market.

The compact and rugged AccuAuto embedded antennas offer important functions not available in other embedded autonomous vehicle antennas on the market.

The automotive industry is switching from offering GNSS-based navigation with an accuracy requirement of ± 3 to 5 meters (GNSS code positioning with low accuracy) to driver support (e.g. lane keeping) and autonomous vehicle navigation with an accuracy requirement of <0.1 meters (e.g. high-precision GNSS phase positioning).

Current roof-mounted GNSS antennas on most vehicles provide the accuracy required for navigation, but lack the precision required for assisted driving or autonomous vehicle operation. Tallysman’s new AccuAuto antennas provide strong clean code and phase signals that enable high-precision real-time kinematics (RTK) and precise point positioning (PPP).

The AccuAuto vehicle antenna embedded in Tallysman features a patented Tallysman Accutenna technology multi-constellation and multi-frequency antenna element, an integrated ground plane, radome and bottom cover that provide fog and condensation protection.

The bottom cover also supports the antenna cable and reduces cable vibration to ensure the antenna has a long life while the ground plane improves antenna performance.

All electronic components of the AccuAuto antenna are certified by the Automotive Electronics Council (AEC) and designed for demanding environmental conditions such as extreme temperatures (-40 ° C to +125 ° C) as well as continuous shock and vibration.

The signal quality is improved by a deep pre-filter that minimizes out-of-band noise and maximizes in-band termination. This feature enables reliable GNSS signal reception in challenging urban environments where intermodulated signal interference from LTE and other cellular radio bands is common.

The triple-band TWA928 supports GPS / QZSS-L1 / L2 / L5, GLONASS-G1 / G2 / G3, Galileo-E1 / E5a / E5b, BeiDou-B1 / B2 / B2a and NavIC-L5 signals and frequency bands (the TWA928L supports L-band correction services.

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