Full System Full Frequency Compact High Precision Board

ER-GB-01 Features:
1. Centimeter-level high-precision RTK positioning;
2. Carrier phase observations better than 1mm;
3. Support 3 serial ports, 11PPS.

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Introduction

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	2x10 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)