VN-300 DUAL GNSS/INS

The VN-300 is a compact, high-performance Dual Antenna GNSS-Aided Inertial Navigation System (Dual GNSS/INS). It integrates advanced MEMS inertial sensors, two high-sensitivity GNSS receivers, and sophisticated Kalman filtering algorithms to deliver precise position, velocity, and attitude data. Its onboard GNSS-Compass ensures accurate heading measurements without relying on vehicle dynamics or magnetic sensors, offering exceptional performance in both static and dynamic environments.

Key Advantages

• World’s First Dual GNSS/INS in a Single SMD Package:
  The VN-300 SMD, no larger than a postage stamp, requires only a single 3.2–5.5V power supply and can be directly embedded into your electronics, providing significant size, weight, and power (SWAP) benefits.

• Rugged “Plug and Play” Option:
  The VN-300 Rugged version features a precision anodized aluminum enclosure for enhanced protection of internal components, making it ideal for demanding environments.

Performance Highlights

• Dynamic Heading Accuracy (INS): 0.2°
• Static Heading Accuracy (GNSS-Compass): 0.15°
• Dynamic Pitch/Roll Accuracy (INS): 0.03°
• Gyro In-Run Bias Stability: 5°/hr
• Accel In-Run Bias Stability: < 0.04 mg
• Horizontal/Vertical Position Accuracy: 1.0 m / 1.5 m
• High Data Output Rate: Up to 400 Hz
• Ultra-Compact SMD: 24 x 22 x 3 mm, 5 grams, <1.25 W

Advanced Features

• True Inertial Navigation:
  No restrictions on mounting orientation or configuration modes. Automatic filter initialization and dynamic alignment for seamless operation.

• User Configurable Messaging:
  Supports ASCII and VectorNav Binary messages for flexible integration.

• Seamless Heading Transition:
  Automatically switches between magnetic heading, INS operation during movement, and GNSS-Compass in static conditions.

• Comprehensive Software Compatibility:
  Shares a common communication protocol with the entire VectorNav product line. The VectorNav Control Center GUI (free download) simplifies sensor setup, configuration, and data logging.

• Rapid Abailility:
  ITAR-free, made in the USA.

Performance Beyond the Spec Sheet

• Proprietary Extended Kalman Filter INS delivers continuous, coupled position, velocity, and attitude solutions across the full 360° range.
• Real-time gyro and accelerometer bias tracking and compensation.
• VectorNav Processing Engine (VPE) for disturbance rejection, adaptive filtering, and dynamic filter tuning.
• Hard/soft iron compensation (real-time and manual, 2D & 3D).
• All sensors are individually calibrated for bias, scale factor, misalignment, and temperature across the full operating range (-40°C to +85°C).
• Outputs include raw pseudorange, Doppler, and carrier phase data, as well as coning and sculling integrals.

Sensor and Environmental Specifications

• VN-300 Rugged: 45 x 44 x 11 mm, 30 g, 3.3–14 V input, 1.25 W power
• VN-300 SMD: 24 x 22 x 3 mm, 5 g, 3.2–5.5 V input, 1.25 W power
• Operating Temperature: -40°C to +85°C
• MTBF: >125,000 hours (Rugged), >165,000 hours (SMD)

Attitude, Position & Velocity

• Heading/Yaw, Roll Range: ±180°
• Pitch Range: ±90°
• Heading Accuracy (INS): 0.2° (1σ)
• Heading Accuracy (GNSS-Compass):
  • 0.5 m baseline: 0.3°–0.6° RMS
  • 1.0 m baseline: 0.15°–0.3° RMS
  • 2.0 m baseline: 0.08°–0.15° RMS
• Pitch/Roll Accuracy (INS): 0.03° (1σ)
• Horizontal Position Accuracy: 1.0 m RMS
• Vertical Position Accuracy: 1.5 m RMS
• Velocity Accuracy: <0.05 m/s

Integrated Sensors

• Accelerometer: ±16 g, <0.04 mg in-run bias stability, <0.14 mg/√Hz noise density, 230 Hz bandwidth
• Gyroscope: ±2,000°/s, <10°/hr in-run bias stability (5°/hr typical), 0.0035°/s/√Hz noise density, 265 Hz bandwidth
• Magnetometer: ±2.5 Gauss, 140 µGauss/√Hz noise density, 200 Hz bandwidth
• Barometer: 10 to 1200 mbar, 200 Hz bandwidth

GNSS Receiver

• Type: 72 Channel, L1C/A, L1OF, E1, B1I GNSS
• Supported Constellations: GPS, GLONASS, Galileo, BeiDou, QZSS, SBAS
• Time-To-First-Fix: 29 s (cold), 1 s (hot)
• Altitude Limit: 50,000 m
• Velocity Limit: 500 m/s

Interfaces

• VN-300 Rugged: RS-232, Serial TTL
• VN-300 SMD: Serial TTL, SPI
• GNSS PPS: 30 ns RMS, 60 ns (99%)
• Input/Output: Sync-in, Sync-out

Quality and Reliability

Each VN-300 sensor undergoes rigorous calibration and acceptance testing at VectorNav’s AS9100 certified facility. Performance is validated through comprehensive field testing and real-world applications.