Dubhe-A1 RLG Inertial Navigation System for Drones - 195×160×108mm, ≤3.9kg Weight, -40℃ to 60℃ Operating Range

Name: Dubhe-A1 RLG Inertial Navigation System for Drones - 195×160×108mm, ≤3.9kg Weight, -40℃ to 60℃ Operating Range
Brand: CSSC Star&Inertia Technology co.,ltd.

High-precision Dubhe-A1 RLG inertial navigation system featuring ≤0.008°/hr gyro bias, ≤30μg accelerometer accuracy, and multi-source fusion capability. Designed for fixed-wing and rotary-wing UAVs with 20,000+ hours MTBF and robust environmental tolerance.

Pitch & Roll Accuracy/Pure inertia ≤0.03°,RMS

Pitch & Roll Accuracy/INS/GNSS combination ≤0.015°,RMS

Speed accuracy/Pure inertia ≤1.2m/s,RMS

Temperature -40℃~60℃

Place of Origin China

Speed accuracy/INS/GNSS combination ≤0.2m/s,RMS

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Product Description

Dubhe-A1 Celestial RLG Inertial Positioning System

The Dubhe-A1 is a high-performance aerospace inertial navigation system utilizing ring laser gyroscope (RLG) technology and quartz accelerometers as core sensors. This advanced system employs strapdown or modulated architecture with a high-speed navigation computer running sophisticated algorithms to deliver real-time navigation solutions.

Key Applications

Fixed-wing UAV navigation and control systems
Rotary-wing UAV positioning and stabilization
Special aircraft navigation requirements

Advanced System Features

Ground sway base and airborne alignment capability
Switchable alignment modes (self/transfer/moving base)
Multi-source navigation fusion (GNSS, celestial, altimeter, radio, vision)
Comprehensive fault detection and alarm functions

Technical Specifications

Parameter	Specification
Accelerometer Bias Repeatability (1σ)	≤30μg
Accelerometer Scale Factor Accuracy (1σ)	≤30ppm
Gyro Bias Repeatability (1σ)	≤0.008°/hr
Gyro Scale Factor Accuracy (1σ)	≤10ppm
Gyro Random Walk (1σ)	≤0.003°/√hr
Position Accuracy (Pure Inertial)	≤1.0nm/1h, CEP
Speed Accuracy (Pure Inertial)	≤1.2m/s, RMS
Angular Rate	≥±400°/sec
Angular Acceleration	100000°/sec²
Acceleration	＞25g
Power Consumption	＜20W
Dimensions	195×160×108 mm
Weight	＜3.9kg
Operating Temperature	-40℃ to 60℃
Input Voltage	DC24V (±25%)
MTBF	＞20000 hours

AHRS Performance Specifications

Parameter	Pure Inertial	INS/GNSS Combination
Heading Accuracy (RMS)	≤0.05°sec(L)	≤0.03°
Pitch & Roll Accuracy (RMS)	≤0.03°	≤0.015°

Environmental Specifications

Shock Resistance	15g, Half-sine wave 11ms
Vibration Resistance	20-2000Hz, 6.06g
Cooling Method	Conduction to mounting plate

System Capabilities

The Dubhe-A1 supports multiple operational modes including pure inertial navigation and multi-source fusion, providing complete navigation parameters with exceptional reliability and precision for demanding aerospace applications.