Full System Multi-Frequency High-Precision Directional Board

ER-GB-03 Features:
1. 46x71mm compact board, interface compatible with mainstream boards;
2. Full system multi-frequency high-precision directional board;
3. Support BDS B1/B2+GPSL1/L2+GLONASS L1/L2+GALILEO E1/E5b+QZSS L1/L2;
4. Simultaneous output of positioning and orientation, data output rate above 20Hz.

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Introduction

ER-GB-03 Full System Multi-Frequency High-Precision Directional Board

Introduction

ER-GB-03 Full System Multi-Frequency High-Precision Directional Board is a new generation of compact high-precision boards based on Nebulas-II high-performance and high-precision chips. It supports high-precision positioning and orientation of multi-frequency points in the entire system. For instance, ER-GB-03 tracks satellite signals such as BDS B1/B2+GPS L1/L2+GLONASS L1/L2+GALILEO E1/E5b+QZSS L1/L2. ER-GB-03 adopts small and classic size, and supports network and inertial device integrated navigation. It is mainly targeted at application fields such as drones, driving tests and intelligent driving.

Features

46x71mm compact board, interface compatible with mainstream boards

Full system multi-frequency high-precision directional board

Support BDS B1/B2+GPSL1/L2+GLONASS L1/L2+GALILEO E1/E5b+QZSS L1/L2

Simultaneous output of positioning and orientation, data output rate above 20Hz

RTK re-acquisition time within 1s; supports hot start*

Support network functions, support multiple interfaces such as serial port, SPI, PPS, etc.

Nebulas-IITM multi-system multi-frequency high-performance Nebula SoC chip

Support dual antenna signal input, single board positioning;

Supports advanced multipath suppression technology;

Support multiple physical interfaces such as serial port, network, SPI, 1PPS, Event, etc.

Applications

Machinery control

Precision agriculture

Driver test

Drone

Specifications

Aisle	432 chanels based on Nebulas-II chip
Frequency	BDS B1/B2/B3, GPS L1/L2, GLONASS L1/L2 Galileo E1/E5b, QZSS L1/L5
Single point positioning (RMS)	Plane: 1.5m, Elevation: 2.5m
DGPS (RMS)	Plane: 0.4m, Elevation: 0.8m
RTK (RMS)	Plane: 1.0cm + 1ppm, Elevation: 1.5cm + 1ppm
Cold start	<25s
Hot Start	<10s
Recapture	>1s
Initialization time	<5s (typical)
Initial reliability	>99.9%
Differential data	RTCM 2.3/3.0/3.2
Data format	NMEA-0183, unicore
Data update rate*	20Hz
Positioning update rate*	20Hz
Time accuracy (RMS)	20ns
Speed accuracy (RMS)	0.03m/s
Orientation accuracy (RMS)	0.2°/1m baseline
Inertial navigation accuracy	<5%×driving distance (no GNSS signal)
Network protocol	NTRIP、TCP/IP
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)/E5b code	10cm	10cm	10cm	10cm
B2/L2/E5b code	1mm	1mm	1mm	1mm
Physical properties
Size	46x71x9 mm
Weight	21g
Operating temperature	-40°C~+85°C
Storage temperature	-40°C~+85°C
Humidity	95% non-condensing
I/O interface	2×14 pin
Antenna interface	2xMMCX
Vibration	GJB150.16-2009, MIL-STD-810
Shock	GJB150.18-2009, MIL-STD-810
Electrical index
Voltage	3V~5C DC
LNA powered	4.75~5.10V, 0~100 mA
Voltage ripple	100mV p-p (max)
Power consumption	2.4W (typical)
Function interface
3x UART (LVTTL), 1xLAN, 1x1PPS (LVTTL), 1xEvent