The Lars Thrane LT-1000 NRU (Navigation reference Unit) is a small, compact, and very advanced unit with 12 precision sensors (magnetometers, gyros, accelerometers, barometer, thermometer, and GNSS/GPS receiver). With the use of sensor-fusion and Kalman filtering, the LT-1000 NRU outputs: true heading, roll, pitch, position, ground speed, course over ground, air pressure, and temperature in real-time, with high precision and resolution.
The LT-1000 Navigation Reference Unit (NRU) is a maritime navigation product from Lars Thrane A/S. LT-1000 NRU is designed for the leisure as well as the professional maritime markets, and the unit meets all standards and certification requirements needed for worldwide maritime navigation equipment. The LT-1000 NRU makes use of the latest technology within GNSS
receivers, with market leading acquisition and tracking performance.
The adaptive deviation calibration algorithm is an alternative to the standard deviation calibration algorithm (figure 8-pattern) and should be used by vessels that cannot perform the standard
deviation calibration figure 8-pattern. The new adaptive deviation calibration algorithm will improve performance over time as the vessel navigates on different courses. The adaptive deviation
calibration algorithm must be activated using the LT-Service Tool. Use the LT-Service Tool for optional configuration and offset adjustment of the LT-1000 NRU. The LT-Service Tool is a PC program, which may run on any Windows PC.
- Kalman filtering
- Calculation of magnetic variation based on the World Magnetic Model (WMM)
- Compensation of soft and hard iron (deviation)
- Built-in magnetometer calibration algorithm
- Receive and track multiple satellite systems (GPS, GPS & GLONASS, or GPS & BeiDou)
- Support for Satellite-Based Augmentation System (SBAS): EGNOS, WAAS and MSAS
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