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1. Overview
UB4B0M is a new generation compact RTK board based on NebulasII high performance
and high accuracy GNSS SoC. It supports signals including BDS B1I/B2I/B3I/B1C/B2a,
GPS L1/L2/L5, GLONASS L1/L2 and Galileo E1/E5a/E5b. UB4B0M is characterized by its
classic small size, supports chip-level multi-path mitigation, and delivers millimeter-level
carrier phase observations and centimeter-level RTK positioning. UB4B0M is particularly
suitable for surveying and mapping, high-precision positioning and navigation application.
UB4B0M adopts UNICORECOMM
’s new generation all-system multi-frequency
high-performance SoC - NebulasII. The chip is based on the mature core technology of
XINGYUN baseband chip, supports 432 channels, and integrates a 600MHz ARM
processor and a special high-speed floating-point processor, yielding stronger satellite
navigation signal process ability. Making full use of the high-performance date sharing
ability and the super simplified real-time operation system, UB4B0M optimizes the
multi-dimensional RTK matrix pipeline computing, which considerably enhances the RTK
process ability and realizes the multi-system multi-frequency RTK calculating (more than
32 satellites).
The newly designed tri-band RTK engine of UB4B0M can process observation data from
multiple frequencies of BDS, GPS, GLONASS and Galileo, which can significantly
improve the RTK initialization speed, measurement accuracy and reliability in harsh signal
environment like urban areas and shade of trees, and realize long-baseline
centimeter-level RTK positioning.
Figure 1-1 UB4B0M All-constellation All-frequency Compact High Precision Board
