The CDL MiniPOS/NAV system combines CDL’s MiniPOS2 inertial navigation product with RDI’s DVL technology in a single housing which ensures ease of calibration and integrity of the calibration data. A combined pressure housing provides size and weight savings which makes the system easier to integrate into modern ROV spreads.
DVL aided inertial navigation allows the drift rate inherent in pure inertial navigation systems to be greatly reduced and allows the system to navigate accurately over long distances with no external position input. CDL can provide specially designed computer software which allows integration of acoustic range via USBL or LBL to allow the MiniPOS/NAV to output high update rate,high accuracy, smoothed positional information which can be used to greatly improve a wide range of subsea survey tasks.
MiniPOS/NAV uses a high grade Ring Laser Gyrocompass (RLG) which can also be aided on the surface by GPS. Two grades of RLG sensor can be tted to allow medium or high grade positioning accuracy.System outputs include: Heading, Pitch, Roll, Depth, X, Y and Z angular velocities, X, Y and Z linear accelarations, Heave, Surge and Sway as well as full positional information in a variety of coordinate systems.
The MiniPOS/NAV system can be precongured and calibrated, ready to installon client ROV and AUV systems.
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