UM981
UM981
GPS/BDS/GLONASS/Galileo/QZSS All-constellation Multi-frequency RTK/INS Integrated Positioning Module
Unicore's new-generation proprietary RTK/INSintegrated navigation module. The module integrates a high-speed floating-point processor and an RTK-dedicated coprocessor, enabling it to output IMU raw data at 100Hz and RTK data at 50Hz, respectively. The on-board MEMS chip and algorithm ensure continuous, high-quality positioning results in GNSS denied environments such as buildings, tunnels, overpasses, and shaded areas. With its high precision and performance, the UM981 is well-suited for surveying and precision agriculture, among other applications.
Features
Based on the new generation GNSS SoC - NebulasIV, which integrates RF, baseband, and high precision algorithm
All-constellation multi-frequency RTK engine and advanced RTK technology
Instant RTK initialization technology
60 dB narrowband interference suppression and interference detection
Heading2 technology to provide orientation information
STANDALONE single-station high-precision positioning technology
Supports B2b-PPP and E6-HAS
On-board MEMS integrated navigation and U-Fusion technology to ensure continuous positioning when loss of lock on GNSS signals
Technical Specifications
Performance Specifications
|
Channel |
1408 channels, based on NebulasIV |
|||
|
Frequency |
GPS L1C/A, L1C, L2C, L2P(Y), L5 |
|||
|
BDS B1I, B2I, B3I, B1C, B2a, B2b |
||||
|
GLONASS G1, G2, G3 |
||||
|
Galileo E1, E5a, E5b, E6 |
||||
|
QZSS L1C/A, L1C, L2C, L5 |
||||
|
NavIC L5 |
||||
|
SBAS L1C/A |
||||
|
Single Point Positioning(RMS) |
Horizontal: 1.5m |
|||
|
Vertical: 2.5m |
||||
|
DGPS (RMS) |
Horizontal: 0.4m |
|||
|
Vertical: 0.8m |
||||
|
RTK (RMS) |
Horizontal: 0.8cm+1ppm |
|||
|
Vertical: 1.5cm+1ppm |
||||
|
PPP（RMS） |
Horizontal: 5cm |
|||
|
Vertical: 10 cm |
||||
|
Tilt Measurement |
10 mm + 0.7 mm/°tilt (accuracy < 2.5 cm within 30°) |
|||
|
Positioning Error of INS only |
< 5 % of the distance traveled without GNSS signals |
|||
|
Observation Accuracy (RMS) |
BDS |
GPS |
GLONASS |
Galileo |
|
B1I/B1C/L1 C/A/G1/E1 Code |
10 cm |
10 cm |
10 cm |
10 cm |
|
B1I/B1C/L1C/A/G1/E1 Carrier Phase |
1 mm |
1 mm |
1 mm |
1 mm |
|
B2I/B2a/B2b/L5/E5a/E5b Code |
10 cm |
10 cm |
10 cm |
10 cm |
|
B2I/L2P(Y)/L2C/G2/E5b Carrier Phase |
1 mm |
1 mm |
1 mm |
1 mm |
|
B3I/B2a/E5a/L5 Code |
10 cm |
10 cm |
10 cm |
10 cm |
|
B3I/B2a/E5a/L5 Carrier Phase |
1 mm |
1 mm |
1 mm |
1 mm |
|
Time Accuracy (RMS) |
20 ns |
|||
|
Velocity Accuracy (RMS) |
||||
|
Cold start |
< 12 s |
|||
|
Initialization Time |
< 5 s (typical) |
|||
|
Initialization Reliability |
> 99.9% |
|||
|
Data Update Rate |
100 Hz (IMU RAW Data) |
|||
|
50 Hz* (RTK) |
||||
|
Differential Data |
RTCM V3.X |
|||
|
Data Format |
NMEA-0183, Unicore |
|||
Physical Characteristics
|
Packaging |
54 pin LGA |
|
Dimension |
|
|
Weight |
Environmental Specifications
|
Working temperature |
-40 °C ~ +85 °C |
|
Storage Temperature |
-55 °C ~ +95 °C |
|
Humidity |
95% No condensation |
|
Vibration |
|
|
Shock |
Communication Interface
|
3 x UART (LVTTL) |
|
1 x I2C* |
|
1 x SPI* |
|
1 × CAN* (shared with UART3) |
Note: Items marked with * are only supported by specific firmware.
For more information about unicore communicationsand anti-jamming, please feel free to contact us!
在线联系供应商
Other supplier products
 |
UM220-INS NL | UM220-INS NL Industrial Grade Multi-GNSS Inertial Navigation Moduleand Positioning Module UM220-INS NL is an industrial grade dead reckoning gnss... |
 |
UM220-IV M0 | Industrial Grade Multi-GNSS Navigation and Positioning Module Multi-constellation compact navigation module designed for the automotive market. Ba... |
 |
UM220-IV NL | UM220-IV NL Industrial Grade Multi-gps satellite navigationand Positioning Module Multi-constellation positioning module for the vehicle navigati... |
 |
High Precision GNSS Products | Unicore high accuracy gps moduleare based on the NebulasIV GNSS SoC. With all-constellation all-frequency support and designed for use in high-p... |
|
|
UM981 | UM981 GPS/BDS/GLONASS/Galileo/QZSS All-constellation Multi-frequency RTK/INS Integrated Positioning Module Unicore's new-generation proprietary R... |
Same products
|
|
High Precision GNSS Products | 卖方: Unicore Comunications，Inc. | Unicore high accuracy gps moduleare based on the NebulasIV GNSS SoC. With all-constellation al... |
|
|
UM220-INS NL | 卖方: Unicore Comunications，Inc. | UM220-INS NL Industrial Grade Multi-GNSS Inertial Navigation Moduleand Positioning Module UM220... |
|
|
UM220-IV NL | 卖方: Unicore Comunications，Inc. | UM220-IV NL Industrial Grade Multi-gps satellite navigationand Positioning Module Multi-constel... |
|
|
UM981 | 卖方: Unicore Comunications，Inc. | UM981 GPS/BDS/GLONASS/Galileo/QZSS All-constellation Multi-frequency RTK/INS Integrated Position... |
|
|
UM220-IV M0 | 卖方: Unicore Comunications，Inc. | Industrial Grade Multi-GNSS Navigation and Positioning Module Multi-constellation compact naviga... |
