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Using an advanced 23-state Kalman filter to
combine the best qualities of Inertial Navigation Systems (INS)
with those of GPS technology, the F180 delivers noise free, accurate
and reliable measurements even during short GPS dropouts –
crucial in high multipath conditions or in survey areas such as
ports and harbours, riverbanks, near-shore coastal waters and
around offshore structures.
Performance of the F180 has been documented
and the system tried and tested by leading multibeam manufacturers
and survey contractors, who have shown it to deliver the precision
and reliability demanded of it. Furthermore, the F180 meets and
exceeds IHO (International Hydrographic Organisation) Special
Order requirements.
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Position accuracy
(CEP) |
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0.02 / 0.2** |
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0.5 – 4.0m |
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Velocity |
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0.03ms-1
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0.03ms-1 |
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Roll and pitch |
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<0.025° |
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<0.025° |
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True heading |
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1m baseline – 0.1°
2m baseline – 0.05°
4m baseline – 0.025° |
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1m baseline – 0.1°
2m baseline – 0.05°
4m baseline – 0.025° |
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Heave |
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5% of heave amplitude or 5 cm |
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5% of heave amplitude or 5 cm |
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PHYSICAL
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Component |
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Specification |
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Weight |
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Splash-proof ‘one-box’ solution
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2.5kg |
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Power |
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Splash-proof ‘one-box’ solution
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9 – 18Vdc, 25 Watts |
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Antennas |
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Novatel Pinwheel Technology
with integral choke rings to reduce multipath effects |
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INTERFACES
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Function |
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Output |
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Ethernet Interface
(I00base-T) |
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Control, set-up and diagnosis of F180
using F180 windows application software. |
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High data rate comprehensive information
output packet (100Hz) for high speed interfacing. |
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Serial 1 |
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Attitude data
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TSS1, Simrad EM3000 and other standard
attitude strings. |
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Serial 2 |
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NMEA position data |
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GGA position, HDT heading. |
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Serial 3 |
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RTK / Differential correction input |
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RS232 (DB9) up to 115k baud |
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*All performance errors to within 1 sigma
**0.02m performance requires optional L1/L2 upgrade
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