MTi-7 GNSS/INS

The MTi-7 is a self-contained GNSS/INS (Global Navigation Satellite System/Inertial Navigation System). The MTi-7 uses advanced sensor fusion algorithms developed by Xsens to synchronize the inputs from the module’s on-board accelerometer, gyroscope and magnetometer with the data from an external GNSS receiver and/or barometer. The raw sensor signals are combined, and processed at a high data rate of 100 Hz, to produce a real-time data stream with the device’s 3D position, velocity and orientation (roll, pitch and yaw).  

T The MTi-7 is a miniature GNSS/INS as a 12.1 x 12.1 mm module with an interface to an external GNSS receiver. The Xsens optimized strapdown algorithm (AttitudeEngineTM) performs high-speed dead-reckoning calculations at 1 kHz allowing accurate capture of high frequency motions. Xsens’ industry-leading sensor fusion algorithm provides high accuracy and sensor auto-calibration in a cost-effective module for a wide range of (embedded) applications. It relieves users from the design, integration and maintenance of gyroscopes, accelerometers and other sensors.

Technical specifications

Sensor Fusion Performance

  • Roll, pitch
    0.5 deg RMS
  • Yaw/Heading
    1.5 deg RMS
  • Position
    <1 m CEP
  • Velocity
    0.05 m/s RMS

 

Sensing Components

  • Gyroscope
    Standard full range: 2000 deg/s
    In-run bias stability: 6 deg/h
    Noise density: 0.003 º/s/√Hz
  • Accelerometer
    Standard full range: 16g
    In-run bias stability: 40 µg
    Noise density: 70 µg/√Hz
  • Magnetometer
    Available

System Specifications

  • Mechanical
    IP-rating (equivalent): IP00
    Dimensions: 12.1×12.1×2.55 mm
    Weight: 0.6 gr
  • Electrical
    Input voltage: 2.19 to 3.6V
    Power consumption: <100 mW @ 3V
  • Interfaces/IO
    Interfaces: UART, SPI, I²C
    Protocols: Xbus, NMEAin
    Output frequency: up to 1kHz, 100 Hz SDI