RTK GNSS-INS & LiDAR Mapping Sensors for UAVs and Autonomous Vehicles

Polynesian Exploration Inc
Polynesian Exploration GNSS-INS Solutions

Polynesian Exploration is a leading developer of inertial navigation solutions. Our innovative sensors are ideal for demanding unmanned systems applications such as UAVs (unmanned aerial vehicles) and UGVs (unmanned ground vehicles), as well as the next generation of high-performance autonomous driving systems.

GNSS-Aided Inertial Navigation Systems (INS)

PolyNav 2000P/E – dual frequency RTK GNSS-INS

PolyNav 2000PE RTK GNSS-INS for UAVThe PolyNav 2000P/E high-precision GNSS-aided Inertial Navigation System (INS) leverages the advantages of both GNSS and INS to provide centimeter-level position and velocity measurement accuracy for UAVs and other unmanned vehicles. The system offers dual frequency Real Time Kinematic (RTK) positioning and tightly-coupled GNSS and INS systems to provide superior performance even during GNSS signal outages.

The system continuously generates highly accurate attitude measurements whether the platform is moving or static, and is highly effective even in urban environments. Automotive Dead Reckoning (ADR) technology maintains position for up to 30 seconds during GNSS outages that may occur under bridges or inside tunnels, making the PolyNav 2000P/E ideal for autonomous driving applications.

The PolyNav 2000P/E offers a choice of two grades of inertial sensor performance. The system is packaged in a ruggedized 145mm x 120 mm x 45mm enclosure, and features CAN, Ethernet and USB interfaces, 2 UARTs, and one PPS output.

Specifications:

PolyNav 2000P PolyNav 2000E
Gyro Dynamic Range 500 °/s 400 °/s
Accelerometer Dynamic Range 15g 8g
Gyro Bias Instability 1°/h 6°/h
Accelerometer Bias Instability 14ug 20ug
Gyro Random Walk 0.2°/√h 0.75°/√h
Accelerometer Random Walk 0.07m/s/√h 0.05m/s/√h
Position Accuracy 1.6 m CEP SPS, 0.02 m RTK
Velocity Accuracy 1 cm/s
Roll/Pitch 0.05°
Heading 0.1°

PolyNav 2000F – FOG-based dual antenna GNSS-INS

PolyNav 2000F - FOG GNSS-INS for Autonomous VehiclesThe PolyNav 2000F is a tactical-grade Fiber Optic Gyro (FOG)-based GNSS-aided Inertial Navigation System (INS) that provides extremely accurate attitude and heading data for unmanned vehicle applications. The sensor offers dual frequency Real Time Kinematic (RTK) positioning and tightly-coupled GNSS and INS systems to provide superior performance even during GNSS signal outages.

With high-accuracy attitude and heading outputs on both stable and moving platforms, the PolyNav 2000F is ideal for high-performance navigation for UAVs and self-driving systems. Communication capabilities include two serial ports, one Gigabit Ethernet port, one CAN bus and one USB port.

Specifications:

Gyro Dynamic Range 500 °/s
Accelerometer Dynamic Range 10g
Gyro Bias Instability 0.05°/h
Accelerometer Bias Instability 15ug
Gyro Random Walk 0.015°/√h
Accelerometer Random Walk 0.07m/s/√h
Position Accuracy 1.6 m CEP SPS, 0.02 m RTK
Velocity Accuracy 1 cm/s
Roll/Pitch 0.01°
Heading 0.02°

PolyNav 2000B – Rugged GNSS Base Station

PolyNav 2000B - GNSS Base Station for Unmanned Vehicles

The PolyNav 2000B GNSS Base Station is a ruggedized dual-frequency multi-constellation GNSS reference station that broadcasts real-time RTCM corrections for any RTK-capable unmanned vehicles. The base station can be quickly and easily configured using an intuitive GUI via a local radio link or NTRIP caster/client (network RTK).

The PolyNav 2000B features a fast search engine to improve Time to First Fix (TTFF), with a configurable update rate of up to 50 Hz. It can be configured to record all tracked dual frequency multi-constellation measurements for post-processing.

Specifications:

GNSS Signals GPS L1+L2, QZSS L1+L2, BeiDou B1+B2, GLONASS G1+G2 FDMA,GALILEO E1+E5b, SBAS L1
Position Accuracy (HRMS), SBAS 0.50 m
Velocity Accuracy (HMRS) 0.02 m/sec
RTK Positioning Accuracy (HRMS) 8 mm + 1 ppm
Operating Range > 40 km

PolyNav 2000P OEM – High-Performance GNSS-INS

Polynav 2000P OEM GNSS-INSThe PolyNav 2000P OEM is a high-performance high-precision GNSS-INS, offering dual frequency RTK positioning for centimeter level accuracy. The tightly coupled GNSS and INS systems provide superior performance during GNSS signal outages, and the system is capable of continuously generating highly accurate attitude measurements whether the platform is moving or static.

The tactical grade IMU sensors offer 2°/h gyro bias instability.

Specifications:

GNSS Signals GPS L1+L2, GLONASS, Beidou, Galileo, and SBAS
Position Accuracy 1.6 m CEP SPS, 0.02 m RTK
Velocity Accuracy 1 cm/s, 0.02 m/sec  (HMRS)
Roll/Pitch 0.05°
Heading 0.05°
Dimensions 80 x 60 x 22 mm
Weight 75g

LiDAR HD Aerial Scanner

PolyScanner – Integrated UAV Mapping Payload

High-performance, ultra-lightweight 3D HD aerial scanner

PolyScanner - Integrated UAV Mapping PayloadThe PolyScanner integrates long-range LiDAR and an HD global shutter camera with state-of-the-art GNSS/INS technology to provide superior performance for UAV 3D mapping and surveying. Precision inertial sensing allows the system to accurately maintain position during GNSS outages.

The onboard computer, tightly coupled with the GNSS/INS system, fuses data from the LiDAR and camera to create a single time- and geo-tagged raw output file, which can be post-processed to provide highly accurate color point cloud data files.

The PolyScanner is also available as part of the complete PolyMapper solution, which integrates the system with a DJI Matrice 600 drone.

Specifications:

Camera Resolution 4096×2160, 8.9 MP
Camera Frame Rate 32 fps
LiDAR Detection Range 260m at 80% reflectivity
Inertial Sensor Dynamic Range Gyros 125°/s, Accelerometers 8g
Inertial Sensor Bias Instability Gyros 2°/h, Accelerometers 3.6ug
Inertial Sensor Random Walk Gyros 0.15°/√h, Accelerometers 0.12m/s/√h
INS/GNSS Position Accuracy 1.6 m CEP SPS, 0.02 m RTK
INS/GNSS Velocity Accuracy 1 cm/s
INS/GNSS Roll/Pitch Accuracy 0.01°
INS/GNSS Heading Accuracy 0.1° (1 m base)

Inertial Sensing Applications

Autonomous Driving

GNSS-INS for Autonomous Cars

Autonomous automotive systems such as self-driving cars require accurate and reliable navigation solutions that are also suitable for mass production. Our inertial navigation sensors are based on high-volume production devices and are ideal for GNSS-denied environments and other challenges faced by autonomous vehicles.

Unmanned Aerial Vehicles/Drones

GNSS-INS for UAVs and DronesSafe drone operation and navigation relies on accurate position, velocity, and attitude information. Precise pitch, roll, and yaw measurement enables stable flight dynamics, and accurate position estimation is critical for motion and path planning in autonomous flight. Polynesian Exploration’s high-performance solutions are designed to provide smarter, safer navigation for UAVs.

Mapping

GNSS-INS for Aerial Mapping ApplicationsGNSS-integrated inertial navigation systems reduce the need for ground control points (GCPs) in aerial mapping performed by manned or unmanned aircraft. 3D maps with centimeter-level accuracy are essential for autonomous driving environments, requiring multiple sensors working together. Polynesian Exploration’s inertial sensors are ideal for facilitating a wide range of mapping applications.

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