Full System Full Frequency Compact High Precision Board
Introduction
ER-GB-01 Full System Full Frequency Compact High Precision Board is a compact high-precision board that supports RTK positioning. This type of board adopts a multi-system, multi-frequency and high-performance SoC chip-Nebulas-IITM with completely independent intellectual property rights. It also adopts a low-power design and provides millimeter and carrier phase observations and centimeter-level RTK positioning accuracy. The instantaneous RTK technology is especially suitable for high-precision navigation and positioning applications.
Features
Centimeter-level high-precision RTK positioning
Carrier phase observations better than 1mm
Support BDS B1/B2/B3+GPS L1/L2/L5+GLONASS L1/L2+Galileo E1/E5a/E5b+QZSS L1/L2/L5
Hardware size compatible with mainstream GNSS OEM boards
MEMS onboard navigation
Multisystem and multi-frequency high-performance SoC chip based on Nebulas-IITM
Support single system independent positioning and multiple system joint positioning
Supports advanced multipath suppression technology
Support 3 serial ports, 11PPS
Specifications
Aisle | 432 chanels based on Nebulas-II chip | |||
Frequency | BDS B1/B2/B3, GPS L1/L2, GLONASS L1/L2 Galileo E1/E5a/E5b, QZSS L1/L2/L5, SBAS L1 | |||
Single point positioning (RMS) | Plane: 1.5m, Elevation: 3.0m | |||
DGPS (RMS) | Plane: 0.4m, Elevation: 0.8m | |||
RTK (RMS) | Plane: 1.0cm+1ppm, Elevation: 1.5cm+1ppm | |||
Cold start | <25s | |||
Recapture | <1s | |||
Initialization time | <5s (typical) | |||
Initial reliability | >99.9% | |||
Differential data | RTCM v2.3/3.0/3.2 | |||
Data format | NMEA-0183, unicore | |||
Data update rate* | 20Hz | |||
Positioning update rate* | 20Hz | |||
Time accuracy (RMS) | 20ns | |||
Speed accuracy (RMS) | 0.03m/s | |||
Inertial navigation accuracy | <5%×driving distance (no GNSS signal) | |||
Observation accuracy (RMS) | BDS | GPS | GLONASS | Galileo |
B1/L1 C/A/E1 code | 10cm | 10cm | 10cm | 10cm |
B1/L1/E1 carrier phase | 1mm | 1mm | 1mm | 1mm |
B2/L2P (Y)/L2C/E5a code | 10cm | 10cm | 10cm | 10cm |
B2/L2P (Y)/L2C/E5a carrier phase | 1mm | 1mm | 1mm | 1mm |
B3/L5/E5b code | 10cm | 10cm | 10cm | 10cm |
B3/L5/E5b carrier phase | 1mm | 1mm | 1mm | 1mm |
Physical properties | ||||
Size | 46x71x11.5 mm | |||
Weight | 26g | |||
Operating temperature | -40°C~+85°C | |||
Storage temperature | -40°C~+85°C | |||
Humidity | 95% non-condensing | |||
I/O interface | 2×10 pin | |||
Antenna interface | 1×MCX | |||
Vibration | GJB150.16-2009, MIL-STD-810 | |||
Shock | GJB150.16-2009, MIL-STD-810 | |||
Electrical index | ||||
Voltage | 3V~5V DC | |||
LNA feed | 4.75~5.10V, 100 mA | |||
Voltage ripple | 100mV p-p (max) | |||
Power consumption | 2W (typical) | |||
Function interface | ||||
Serial port | 3xUART (LVTTL) | |||
PPS | 1xPPS (LVTTL) |