The POLAR-300 is a high-end, MEMS-based Air Data and Attitude and Heading Reference System (ADAHRS) and Inertial Navigation System (INS). It is perfect for system integration in avionics packages or other attitude sensing applications, and includes:
- Attitude Heading & Reference System (AHRS).
- Inertial Measurement Unit (IMU).
- Inertial Navigation System (INS).
- Air Data System (ADS).
- Global Navigation Satellite System (GNSS, including: GPS, Galileo, GLONASS, BeiDou).
POLAR-300 has proved itself in a variety of highly dynamic environments, giving outstanding results:
- Red Bull Air Race
- MotoGP onboard 'GyroCam'
- Reno Air Races.
- Various UAVs as the onboard ADAHRS for the Customer's own flight control computer.
Redundancy built into the POLAR-300 software allows it to survive individual sensor failures while maintaining accurate estimates of attitude and position. Its high-performance MEMS-based IMU is calibrated and compensated over the full industrial temperature range.
Key features:
- High accuracy attitude estimation. Precise attitude determination is an essential process for aircraft navigation and control. To achieve outstanding levels of attitude estimation precision, years of research and development of aerospace-grade sensor fusion estimation algorithms have been invested.
- Redundant IMU.
- Compact and easy to integrate.
- Supplied as standard in an aircraft-grade anodized aluminium box.
- Optionally it can be supplied as an OEM board for direct integration in the Customer's product
- As a developer and manufacturer of professional grade autopilots, UAV Navigation is committed to the highest aviation standards in terms of product performance, accuracy and reliability. UAV Navigation's manufacturing facility is equipped with state-of-the-art calibration and measurement tools and all products which leave the facility must pass exhaustive Quality Control checks. Repeatability is key. All equipment and tools used during manufacture, calibration and Acceptance Testing Protocol (ATP) comply with UAV Navigation's strict Quality Policy
- Combines exceptional navigation and attitude performance device in a wide range of high dynamics conditions and GPS-denied dead-reckoning navigation.
- Quaternion-based solution. Avoiding the gimbal-lock problems found in traditional systems.
- High data report rates from the sensors in order to reduce the latency. This is a critical requirement in advanced control systems.
- It is used as the onboard sensor suite inside UAV Navigation's VECTOR autopilot
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REDUNDANCY AND SAFETY
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Online sensor diagnostics
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Yes
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Sensor failure tolerance
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All single, several multiple
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MTBF
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Over 60462 h
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I/O
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Serial comm
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RS-232, RS-422, RS-485. Up to 3Mbps
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CAN (capability available from early 2017)*
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1Mbps A and B
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*Available under request.
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ELECTRICAL
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Voltage Supply (unregulated)
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9V to 36V DC
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Power consumption
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1W
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GNSS
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Multi-constellation GNSS capability
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Antenna
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Active (for best performance) or passive
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Antenna Connector (boxed version)
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50 Ohm SMA Female
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Antenna power supply
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3.3V
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Sensitivity
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-167 dBm
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Time to First Fix
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Navigation Update Rate
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Velocity Accuracy
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0.05 m/s
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Heading Accuracy
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0.3 degrees
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Horizontal Position Accuracy
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2 m
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Accuracy of Time Pulse Signal (RMS)
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30 ns
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Frequency of Time Pulse Signal
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PPS signal can be configured by the user (default: 1 pps)
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Operational Limits of GNSS
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AIR DATA SYSTEM (ADS)
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Airspeed Ranges
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15-220 kt
(High Speed version is also available: 43-450 kt)
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Altimeter
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-2.000 ft to +36.000 ft AMSL
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Altimeter Accuracy
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50 ft
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Altimeter Resolution
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0.5 ft
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IMU (INERTIAL MEASUREMENT UNIT)
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Sampling rate
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1 kHz
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ACCELEROMETERS
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Accelerometers range
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+/-8 g (all axis), +/-15 g under request
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3dB Bandwidth
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400 Hz
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Noise
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0.52 mg/√Hz
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RATE GYRO RANGE
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Gyro range
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+/- 300 º/s (all axis)
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3dB Bandwidth
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77 Hz
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Noise
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0.015 °/s /√Hz
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MAGNETOMETER
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Internal Magnetometer
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3 axis (possibility to connect external magnetometer, e.g. MG01)
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Magnetometer attitude compensation
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Yes
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Full scale range
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+/- 1000 uT
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Sensitivity
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0.10 uT
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Maximum applied magnetic/field
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100,000 uT
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AHRS/INS DYNAMIC ACCURACY *
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Roll, pitch, yaw range
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Continuous unrestricted |
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Pitch & Roll error
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< 0.5º
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Heading error
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< 1º
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Position
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3m CEP with GPS and WAAS/EGNOS available
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Drift
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<30 m/min (continuous, not first minute only)
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* 1σ precision in single cylinder piston powered UAV standard flight, with full sensor suite operational. Values are valid for internal and external magnetometer operation. |
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MECHANICAL / ENVIRONMENTAL
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Size (mm, H x W x L)
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Weight
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Humidity (boxed only)
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Up to 90% RH, non-condensing
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Temperature range
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-40ºC to +85ºC
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Altitude
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Up to 59000 ft AMSL
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Shock survival
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500g 8ms 1/2 sine
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Mating Connector (boxed only)
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MICRO-D Type Male 15-pin
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| POLAR-300 Kit |
UAV Navigation offers the POLAR-300 Kit to enable evaluation of the POLAR-300 product by Customers.
The Kit includes a POLAR-300 unit along with a POLAR-300 Break Out Board (BOB) to allows the user to access all the available POLAR-300 Inputs and Outputs.
| Name | Kit Contents |
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POLAR-300 Kit |
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POLAR-300 for Flight Control Computers (FCC)
POLAR-300 is a compact and lightweight device designed to provide reliable and accurate data stream from our tested and optimized attitude and heading reference system to SATCOM, camera gimbal or third-party Flight Control Computers (FCC).
