The accuracy of Unicore GNSS receivers ranges all the way from meter, though sub-meter and centimeter, down to the millimeter level.

Using our own unique technology Unicore has successfully developed and fielded series of multi-system, multi-frequency, high-performance System on a Chip (SoC), and a range of high-precision, board-level GNSS receivers and navigation/timing modules.

Applications include Continuously Operating Reference System (CORS) reference stations, survey & mapping, precision agriculture, positioning & heading, vehicle monitoring, autonomous vehicle navigation, and precision timing – along with a number of other

Unicore is a one-stop provider of GNSS SoC chips and GNSS receivers, with extensive experience in the design, verification, development, implementation and production of highly integrated ICs, along with multi-system high-performance GNSS baseband algorit

Unicore Communications, Inc. is a technology company focused on the design & development of highly integrated ICs, algorithms and GNSS receivers.

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UB4B0

GNSS High Precision Board

Brief Introduction

UB4B0 is the first system-wide GNSS high-precision board based on new-generation Nebulas-II high-performance SoC chips developed by Unicore Communications, supporting multiple satellite navigation systems and triple-frequency RTK technology including BDS, GPS, GLONASS, Galileo, SBAS and QZSS, mainly facing to applications of high-precision positioning, navigation and mapping, etc.

Basic Features

• Brand-new Nebulas-II high-performance SoC chips
• Independent positioning of any random system and combined positioning of multiple systems
• Supports advanced multi-path resistance technology and low-elevation tracking technology
• Centimeter-level high precision RTK positioning
• Heading precision superior to 0.2 degree/1m
• Supports traditional access including serial ports, internet access, 1PPS, external clock input, etc.
• Supports CAN and odometer input interface

Product Characteristics

• 432 super channels and specific fast acquisition engines
• Supports BDS, GPS, GLONASS, Galileo, SBAS and QZSS
• Self-adaptive anti-narrowband interference can reach 60dB
• Onboard MEMS integrated navigation
• the interface and size are compatible with the mainstream boards

Data Manual

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Technical Index

Performance Specifications

Channel

432 channels, bases on Nebulas-II chip

Cold Start

<25s

Signal

BDS B1/B2 /B3

GPS L1/L2/L5

GLONASS L1/L2

GALILEO E1/E5a/E5b

QZSS L1/L2/L5

SBAS L1

Hot Start

<10s

Recapture

<1s

Initiation Time

<10s(Typical)

Initiation Reliability

Larger than 99.9%

Differential Data

RTCM 2.X/3.X CMR

Data Format

NMEA-0183,Unicore

Single Point Positioning (RMS)

Plane:1.5m

Data Updating Rate

20Hz

Elevation:3.0m

Positioning Updating Rate

20ns

RTK(RMS)

Plane:10mm+1ppm

TimeAccuracy(RMS)

0.03m/s

Elevation:15mm+1ppm

NetworkProtocol

NTRIP、HTTP、FTP

Electrical Specifications

Voltage 3.3VDC +5%/–3%
LNA 4.75~5.10V, 0~100 mA
RTC
3.0-3.3V DC
Ripple Voltage 100mV p-p(max)
Power Dissipation 2.8W (Typical)

PhysicalSpecifications

Voltage 3.3VDC +5%/–3%
LNA 4.75~5.10V, 0~100 mA
RTC
3.0-3.3V DC
Ripple Voltage 100mV p-p(max)
Power Dissipation 2.8W (Typical)
I/O Connectors 2x12 pin
2x8 pin
Antenna Input
MMCX
External Oscillator MMCX

Functional Ports

Serial Port 1x UART (RS-232),
2 x UART(LV-TTL),
460800bps
Internet Access 1x LAN,10/100M)
USB Port 1x USB 2.0 Host&Deveice
CAN Port 1xCAN
Odometer
1x wheel pulse,
1x driving direction
1PPS interface 2xLV-TTL

Application Area