MEMS INS/GNSS Integrated System

It integrates a MEMS Inertial Measurement Unit (IMU) and a Global Navigation Satellite System (GNSS) receiver, with a built-in navigation algorithm that directly outputs position, velocity, and attitude data. The dual-inertial design (Inertial + GNSS) ensures stable navigation even in GNSS-denied environments.

  • Gyroscope Bias Stability (10s Smoothed): ≤10°/h (XY Axis), ≤5°/h (Z Axis)
  • Accelerometer Bias Stability: ≤100μg (10s Smoothed)
  • System-Level Accuracy: Combined Heading 0.15° (Dual Antenna), Position 3m (Single Point)
  • Gyroscope Bias Stability (10s Smoothed): 0.3°/h
  • Accelerometer Bias Stability: ≤20μg
  • System-Level Accuracy: Self-North-Seeking ≤1×sec(L) (L=Latitude), Heading ≤0.1° (Dual Antenna)
  • Gyroscope Bias Stability (10s Smoothed): 0.1°/h
  • Accelerometer Bias Stability: ≤20μg
  • System-Level Accuracy: Self-North-Seeking ≤0.5×sec(L) (L=Latitude), Heading ≤0.1° (Dual Antenna)

MEMS Positioning and Orientation System

Centered on high-precision attitude measurement, integrated with self-alignment (north-finding) function, and compatible with external odometers for accurate dead reckoning.

  • Gyroscope Bias Stability (10s Smoothing): <0.1°/h
  • Accelerometer Bias Stability: <0.05mg
  • System-Level Accuracy: Self-Aligning North ≤3mil, Attitude ≤0.5mil
  • Industry Positioning: Benchmark for High-Precision Automotive Applications

MEMS Inertial Measurement Unit (MEMS IMU)

Outputs raw data from 3-axis gyroscope (angular rate) + 3-axis accelerometer (linear acceleration). No built-in navigation solution; requires external algorithms for navigation processing.

  • Gyroscope Bias Stability (10s Smoothing): ≤15°/h
  • Accelerometer Bias Stability: ≤300μg
  • Industry Positioning: Mid-Range Industrial Grade
  • Gyroscope Bias Stability (10s Smoothing): 0.3°/h ~ 3°/h
  • Accelerometer Bias Stability: ≤80μg
  • Industry Positioning: Industrial Grade
  • Gyroscope Bias Stability (10s Smoothing): 0.1°/h ~ ≤3°/h
  • Accelerometer Bias Stability: ≤10μg (Allan)
  • Industry Positioning: Tactical Grade
  • Gyroscope Bias Stability (10s Smoothing): ≤0.5°/h (Optional: ≤0.3°/h)
  • Accelerometer Bias Stability: ≤30μg (Allan)
  • Industry Positioning: Tactical Grade Alternative

MEMS Attitude and Heading Reference System (AHRS) / North Finder

Integrates IMU and attitude/heading calculation algorithms, outputs pitch, roll, and heading data. Some models support north-finding.

  • Gyroscope Bias Stability (10s Smoothing): ≤0.3°/h
  • Accelerometer Bias Stability: ≤100μg
  • System-Level Accuracy: Attitude ≤0.1° (Static State), ≤0.5° (Low Dynamic State)
  • Industry Positioning: High-End Industrial Grade AHRS
  • Gyroscope Bias Stability (10s Smoothing): ≤5°/h
  • Accelerometer Bias Stability: ≤100μg
  • System-Level Accuracy: Attitude ≤0.2° (Static State), ≤2° (Dynamic State)
  • Industry Positioning: Mid-Range Industrial Grade AHRS
  • Gyroscope Bias Stability (10s Smoothing): 0.1°/h
  • Accelerometer Bias Stability: ≤100μg
  • System-Level Accuracy: North Seeking ≤0.5*sec (L), Heading Hold ≤0.5°/h
  • Industry Positioning: Tactical Grade North Seeker

Scene Matching Navigation Module

Based on visual map matching technology, it outputs position information and can be externally connected with an IMU to enhance navigation robustness. It serves as a supplementary solution for visual navigation.

  • Split-Type Scene Matching Module
  • System-Level Accuracy: Positioning ≤40m (at 300m Altitude), ≤5% of Flight Altitude (300-3000m)
  • Industry Positioning: Visual Navigation Supplement
  • Integrated Scene Matching Module
  • System-Level Accuracy: Positioning ≤40m (at 300m Altitude), ≤5% of Flight Altitude (300-3000m)
  • Industry Positioning: All-Time Visual Navigation