Replacement for MAPS / DRU with modern sensor technology

The iPRENA-M-H is a high accurate advanced RLG based INS, being designed to provide a replacement for elder "modular azimuth and position systems" (MAPS) inertial navigation systems of type MAPS / DRU of several manufacturers. 

The iPRENA-M-H is based on iMAR's iNAT-RQH series, but provides the following interfaces of the MAPS / DRU:

• enclosure
• connectors
• communication interface (dedicated commands)

Additionally, the iPRENA-M-H comes with additional interfaces like Ethernet and CAN and can include already a high performance GNSS receiver (up to RTK performance).

It consists of 3 high reliable ring laser gyro axes and 3 servo accelerometer axes, integrated GNSS Receiver (GPS, GLONASS, GALILEO, BEIDOU; SBAS), wheel sensor interface and an advanced 42+ state Kalman filter based INS/GNSS loosly or tightly coupled data fusion.

Depending on the class of performance, iPRENA-M-H is under ITAR control.

Since 2021 the product group iPRENA-II, iPRENA-III, iPRENA-IV, iPRENA-M-II, iPRENA-M-III, iPRENA-M-IV is the successor of iPRENA-M-H. These systems are not under ITAR control but only under standard dual-use export control. The solutions are interface compatible. Nevertheless, the elder iPRENA-M-H is still deliverable on request.

Features

• Applications: GNSS aided navigation, free inertial Navigation (air, land, sea, subsea), attitude heading reference (AHRS), surveying, UAV, AUV and RPV guidance & control
• Real-time data output: longitude, latitude, alttude / height, velocty, roll, pitch, yaw / heading, angular rates, acceleration, status, calibrated raw data INS/GNSS (for post-processing)
• Interfaces: RS485 (UART and HDLC / SDLC) Interfaces, CANaero / ARINC825 / CAN, ARINC429, Ethernet (TCP/IP and UDP), SYNC-I/Os
• Data Output rate up to 300 Hz (each data log separately adjustable)
• Measurement range +/-800 deg/s, +/-20 g
• Heading accuracy 0.26 mil sec lat
  Attitude accuracy < 0.2 mil
  Position accuracy free inertial 0.5 nm/hr
  Position accuracy GNSS aided < 1 m (rms) [S/A off]
  Position accuracy GNSS aided 0.02 m (rms) [RTK available]
• Bias over temperature 0.002 deg/h / 25 µg
  Noise / ARW 0.0012 deg/sqrt(hr) / 8 µg/sqrt(Hz)
  Bias stability (AV) < 0.001 °/hr, 10 µg @ const. temp.
• Integrated 42+ state tightly or loosly coupled data fusion
• Internally up to 32 GByte non-volatile memory for data storage
• Power Supply: 10...32 V DC, < 25 W
• EMI-EMC protection and qualification according to DO160G / MIL-STD-704F / MIL-STD-461G / MIL-STD-810G