GNSS positioning to centimeter-level accuracy

November 24, 2021 // By Jean-Pierre Joosting
GNSS positioning to centimeter-level accuracy
Two new GNSS correction service receivers and the firmware-upgraded ZED-F9P high precision GNSS receiver enable easy and scalable solutions.

Swiss company, u-blox has announced a suite of products and feature additions that simplify access to reliable centimeter-level positioning accuracies for the industrial navigation and robotics markets. The upgraded ZED-F9P high precision global navigation satellite system (GNSS) receiver module and the corresponding NEO-D9S and NEO-D9C GNSS correction data receivers offer customers unprecedented flexibility in assembling scalable systems for their specific use case, including robotic lawnmowers, unmanned autonomous vehicles (UAV), and semi-automated or fully automated machinery.

The software-upgraded u-blox ZED-F9P-04B high precision GNSS receiver is the first to support a secure SPARTN GNSS correction data format. It further connects seamlessly to two new GNSS correction service receiver modules that stream correction data from communication satellites. The u-blox NEO-D9S will initially cover the European and US markets before rolling out to the other areas of the globe. Meanwhile, the u-blox NEO-D9C will cover Japan.

NEO-D9S receives correction data using the SSR SPARTN data format over the satellite L-band channel. It uses cryptography to securely deliver PPP-RTK GNSS correction data, such as that offered by u-blox’s PointPerfect service.

NEO-D9C leverages the subscription-free Centimeter-Level Augmentation Service (CLAS) broadcast over mainland Japan provided by the Japanese QZSS (Quasi-Zenith Satellite System) constellation on the L6 band channel.

While u-blox GNSS receivers are designed to work with most correction services on the market, pairing the ZED-F9P with the NEO-D9C or the NEO-D9S correction data receiver enables customers to save data transmission cost and operational efforts.


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