Dubhe-A6 – Optical Gyros & Quartz RLG Aircraft Inertial Navigation System (INS) for Astroinertial Applications | Aerospace RLG INS
The Dubhe-A6 is an advanced airborne optical inertial navigation system (INS) designed for UAVs and special aircraft. It integrates precision gyros (FOG/RLG) and quartz accelerometers in strapdown or modulated configurations. The high-speed navigation computer processes real-time data and supports flexible integration of GNSS, celestial, and other navigation sources, delivering accurate and reliable navigation solutions.
Applications
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Various UAVs
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Special aircraft
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Astroinertial navigation platforms
Key Features
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Robust ground and airborne alignment for precise initialization
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Configurable alignment methods to suit different mission requirements
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Multi-sensor fusion capability for enhanced navigation accuracy
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Comprehensive health monitoring for reliable system operation
| Series | Aerospace Inertial Navigation System(INS-A) | ||
| Type | Dubhe-A6 | ||
| Accelerometer | Months Bias Repeatability(1σ) | ≤30μg | |
| Months Scale Factor Accuracy(1σ) | ≤30ppm | ||
| Gyro | Bias Repeatability(1σ) | ≤0.008°/hr | |
| Scale Factor Accuracy(1σ) | ≤10ppm | ||
| Random walk(1σ) | ≤0.003°/√hr | ||
| Features | Position Accuracy | Pure inertia | ≤1nm/6h,CEP |
| INS/GNSS combination | better than GNSS | ||
| Speed Accuracy | Pure inertia | ≤1.0 m/s,RMS | |
| INS/GNSS combination | ≤0.2m/s,RMS | ||
| Angular Rate | ≥±400°/sec | ||
| Angular Acceleration | 100000°/sec2 | ||
| Acceleration | ＞25g | ||
| Angular Attitude | Any Orientation | ||
| Input/output | 3 RS422 full-duplex serial ports, 1 100M Ethernet port | ||
| Alignment time | ＜15min | ||
| AHRS Applications Performance | Heading Accuracy | Pure inertia | ≤0.02°sec(L),RMS |
| INS/GNSS combination | ≤0.01°,RMS | ||
| Pitch & Roll Accuracy | Pure inertia | ≤0.015°,RMS | |
| INS/GNSS combination | ≤0.01°,RMS | ||
| Characteristics | Power consumption | ＜40W | |
| Dimensions | 193×169×160 | ||
| Weight | ＜6.5kg | ||
| Temperature | -40℃~60℃ | ||
| Shock | 15g,Half-sine wave 11ms | ||
| Input Voltage | DC24V(±25%) | ||
| cooling | Conduction to mounting plate | ||
| Vibration | 20~2000Hz,6.06g | ||
| MTBF | ＞10000 hours | ||
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