unicore UM981, User Manual, Page: 8 / 27

UC-00-M33 EN R1.0 Introduction 3
Performance
Positioning Accuracy
Single Point
Positioning
1
(RMS)
Horizontal: 1.5 m
Vertical: 2.5 m
DGPS (RMS) 1,2
Horizontal: 0.4 m
Vertical: 0.8 m
RTK (RMS) 1,2
Horizontal: 0.8 cm + 1 ppm
Vertical: 1.5 cm + 1 ppm
Tilt
Measurement
10 mm + 0.7 mm/
°
tilt
(accuracy < 2.5 cm within 30
°
)
Attitude Accuracy
Heading 0.3°
Roll 0.2°
Pitch 0.2°
Observation Accuracy (RMS) BDS GPS GLONASS Galileo
B1I/B1C/L1C/L1 C/A/G1/E1
Pseudorange
10 cm 10 cm 10 cm 10 cm
B1I/B1C/L1C/L1 C/A/G1/E1
Carrier Phase
1 mm 1 mm 1 mm 1 mm
B3I/L2P(Y)/L2C/G2/E6
Pseudorange
10 cm 10 cm 10 cm 10 cm
B3I/L2P(Y)/L2C/G2/E6
Carrier Phase
1 mm 1 mm 1 mm 1 mm
B2I/B2a/B2b/L5/G3/E5a/E5b
Pseudorange
10 cm 10 cm 10 cm 10 cm
1 Test results may be biased due to atmospheric conditions, baseline length, GNSS antenna type,
multipath effect, number of visible satellites, and satellite geometry.
2 The measurement uses 1 km baseline and a receiver with good antenna performance, regardless of
possible errors of antenna phase center offset.