VectorNav Device / Instrument
VN-300
Miniature dual-antenna GNSS/INS with integrated GNSS compass heading that does not rely on vehicle dynamics or magnetic sensors; recommended for bathymetric survey.
Description
The VN-300 is a miniature dual-antenna GNSS/INS combining MEMS inertial sensors, two high-sensitivity 72-channel L1 GNSS receivers and Kalman filtering. Its two antennas provide an integrated GNSS compass heading that works in static and dynamic conditions, suited to environments where magnetic heading is unreliable. Released in 2014, it is described as the first dual-antenna GNSS/INS in a single surface-mount package.
Key features
- GNSS-compass heading 0.3° RMS with a 1 m baseline
- 0.2° (1σ) INS heading, 0.03° pitch/roll, 1.0 m RMS horizontal position
- Rugged version: anodized-aluminum enclosure, two MMCX antenna connectors, 45 x 44 x 11 mm, 30 g
- 400 Hz navigation and IMU data
Applications
VectorNav recommends the VN-300 for bathymetric survey with multibeam echosounders and for vessel heading on surface craft.
Specifications
| GNSS-Compass Heading (1 m baseline) | 0.3° RMS |
|---|---|
| Heading (INS) | 0.2°, 1σ |
| Pitch/Roll (INS) | 0.03°, 1σ |
| Horizontal Position Accuracy | 1.0 m RMS |
| GNSS Receiver | 2 x 72-channel, L1 GNSS |
| Data rate | 400 Hz navigation data; 400 Hz IMU data |
| Size (Rugged) | 45 x 44 x 11 mm |
| Weight (Rugged) | 30 g |
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