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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UB482

GPS/BDS/GLONASS/GALILEO Multi-frequency High-precision RTK and Heading Board

Brief Introduction

Developed by Unicore and based on the Nebulas-II high-performance high-precision GNSS SoC, the UB482 is a multi-system, multi-frequency, high-precision heading board. It supports BDS B1/B2 + GPS L1/L2 + GLONASS L1/L2 + Galileo E1/E5b + QZSS L1/L2. UB482 adopts classic compact size and supports network and inertial navigation. It is widely used in drones, driving tests and intelligent driving.

UGypsophila RTK processing technology

Coupled with a high-performance data-sharing capability and simplified operating system within the Nebulas II, UB482 performs sufficient optimization on the multi-dimensional RTK matrix computation. The receiver will try to track all visible satellites of all systems to be used in the RTK and heading solutions, resulting in a shortened RTK initialization time of 5 seconds and improved accuracy and reliability.

Nebulas-II GNSS SoC

UB482 is based on Unicore’s Nebulas-II multi -system, multi-core, high precision SoC. The SoC supports 432 channels, includes a built-in high performance ADC, an anti-interference unit, two 600MHz ARM processors and two precision floating-point processing units, providing powerful GNSS signal processing capability.

On-board MEMS integrated navigation

The UB482 integrates 6-axis on-board MEMS chip and U-Fusion INS algorithm, resulting in optimized continuity and reliability of accurate heading and positioning output in tough environments, such as city canyons, tunnels and overpasses.

Product Characteristics

• 46 X 71 mm compact board, with the interface compatible with the mainstream GNSS boards
• Multi-system multi-frequency high-precision heading
• Supports GPS L1/L2+BDS B1/B2 +GLONASS L1/ L2+Galileo E1/E5b+QZSS L1/L2
• Simultaneous output of heading and positioning and more than 20 Hz data output rate
• Less than 1 second RTK reacquisition speed, support hot start

Basic Features

• Based on a multi-system, multi-frequency and high-performance Nebulas-II GNSS SoC
• Supports dual antenna signal input and single board positioning and heading
• Advanced multi-path mitigation technology
• Rich set of interfaces such as ethernet, serial port, SPI, 1PPS

Data Manual

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Technical Index

Performance Specifications

Channels

432 channels,
based on Nebulas-II GNSS SoC

Heading Accuracy

0.1 degree @1m baseline

Frequencies

BDS B1/B2

Time Accuracy (RMS) 20ns

GPS L1/L2

Velocity Accuracy (RMS)
0.03m/s

GLONASS L1/L2

Reacquisition

<1s

Galileo E1/E5b

Correction

RTCM 2.3/3.0/3.2

QZSS L1/L5

Data Output

NMEA-0183,Unicore

SBAS L1 Heading and RTK Update Rate 20Hz

Single point positioning (RMS)

Horizontal:1.5m

Inertial Navigation Accuracy < 5% x driving distance
(No GNSS signal,within 30s)

Vertical:2.5m

   

DGPS(RMS)

Horizontal:0.4m

   

Vertical:0.8m

   

RTK(RMS)

Horizontal:10mm+1ppm

   

Vertical:15mm+1ppm

   

Electrical Specifications

Voltage

3.3~5V DC

LNA Output

4.75~5.10V, 0~100 mA

Ripple Voltage

100mV p-p(max)

Power Consumption

2.4W(typical)

Physical Specifications

Dimension

46×71×4mm

Weight

21g

I/O Connectors

2x14 pin

Antenna Input

2xMMCX

Temperature

Working: -40℃~+85℃

Storage: -55℃~+95℃

Humidity

95% No condensation

Vibration

GJB150.16-2009,MIL-STD-810

Shock

GJB150.18-2009,MIL-STD-810

Functional Ports

3x UART(LV-TTL)

1x1PPS(LV-TTL)

1xEvent

1xLAN

Application Area