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The latest version of our LandMark™ 20 GPS/AHRS is the mid-performance version of our small size LandMark™ GPS/AHRS. The unit features low noise gyros and accelerometers with exceptional bias in-run and bias over temperature performance with integrated GPS-Aiding in a small, light weight and low power ruggedized package. The unit provides RS485 output of delta velocity, delta theta, heading, pitch and roll angles, altitude information, position, velocity and precision time. The inertial suite is integrated with a 50 channel C/A code GPS receiver with 5Hz position update rate. GPS aiding is included in all units for turning error correction as well as for continued output during short-term GPS dropouts.

• Small, Light Weight and Low Power MEMS GPS-Aided AHRS

• Rugged Environmentally Sealed Packaging & MILSPEC Connector

• Low Noise Gyros 0.01° /sec/√Hz

• Low Noise Accels 0.05mg/√Hz

• In-Run Gyro Bias 15° /hour 1σ

• Heading ±0.5 ° stationary

• Pitch & Roll Angles ±0.25° stationary

• Redundant Altitude ±3 meter 1σ

• Fully Compensated Bias, Scale Factor, Misalignment, g-Sensitivity, Heading & Altitude

• GPS-Aiding of Velocity & Altitude

• Single RS485 Data Rate 100Hz

• GPS Receiver - 50 Channel & 5 Hz Position Data Update Rate

• GPS Accuracy ±2.5m CEP

• Supports WAAS, EGNOS and MSAS

• Low Power < 825 mW typical

• Low Voltage +3.3V (single sided power)

• Light Weight < 160 grams

• Small Size < 108cm³/6.6in³

• Export Classification: Commerce ECCN7A994

The signature feature is the low noise inertial sensors that provide fully compensated bias, scale factor, misalignment, g-sensitivity, heading, pitch and roll angles and redundant altitude information. The unit employs a Kalman Filter to integrate the GPS data and GPS-Aiding with turning error correction in a ruggedized environmentally sealed package that is EMI resistant and includes a MILSPEC connector. This GPS-Aided AHRS is highly durable and can withstand environmental vibration, shock and EMI typically associated with commercial aircraft requirements. The LandMark™ 20 GPS/AHRS is well suited for low cost flight control, navigation, image stabilization, antenna stabilization and pointing, general aviation, automotive testing as well as laboratory use.