Galileo; Qzss; Augmentation System; Sbas - Quectel L76 Hardware Design

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GNSS Module Series

1.5.4. Galileo

They are designed to receive and track Galileo E1 (1573.374–1577.466 MHz) signals provided by

Galileo.

The Quasi-Zenith Satellite System (QZSS) is a regional navigation satellite system that transmits

additional GPS L1 C/A signals for the Pacific region covering Japan and Australia. These modules can

detect and track these signals concurrently with GPS signals, resulting in better availability especially

under challenged conditions, e.g., in urban canyons.

The modules all support SBAS (Satellite-Based Augmentation System) broadcast signal reception, and

GPS data are complemented by additional regional or wide area GPS enhancement data. The system

enhances the data through satellite broadcasting, and the data can be used in GNSS receivers to

improve the accuracy of the results. SBAS satellites can also be used as additional signals for range or

distance measurement, further improving availability. Supported SBAS systems include WAAS, EGNOS,

MSAS and GAGAN.

The supported AGNSS feature significantly reduces the modules' TTFF, especially under lower signal

conditions. To implement AGNSS feature, the modules should get the assistance data including the

current time, rough position, and LTO data.

The modules support the EASY™ feature to improve TTFF and improve the acquisition sensitivity. To

achieve that goal, the EASY™ feature provides assistant information, such as the ephemeris, almanac,

last rough position, time, and a satellite status.

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