Dubhe-12 RLG INS | Maritime Ring Laser Gyro Inertial Navigation System
Product Description
The Dubhe-12 Ring Laser Gyro Inertial Navigation System utilizes high-performance laser gyroscopes and quartz accelerometers as its core sensing elements. Built on a mature strapdown inertial navigation architecture, it integrates real-time navigation algorithms to compute and output navigation parameters with high precision.
The system supports multiple operational modes, including standalone inertial navigation and INS/GNSS hybrid navigation, enabling flexible deployment across various maritime platforms. It delivers accurate heading, roll, pitch, speed, and position information, meeting the requirements of modern naval INS navigation system applications that demand good-quality guidance and robust performance under dynamic conditions.
As a professional guidance INS system provider and manufacturer, the Dubhe series is designed for long-term mission performance in harsh marine environments.
Key Advantages
- Ring laser gyro + quartz accelerometer inertial sensing
- Real-time inertial computation with strapdown INS processing
- Multi-mode operation: standalone INS / INS + GNSS aided
- High accuracy heading & attitude output for maritime platforms
- Stable guidance performance under vibration and high dynamics
- Supports integrated navigation system deployment
- Suitable for unmanned and manned vessel guidance applications
Application Fields
- Maritime integrated navigation system
- Naval surface vessels & patrol craft
- USV / UUV platforms
- GNSS-aided marine guidance systems
- Autonomous maritime navigation and positioning
- Underwater & sea-route navigation solutions
| Series | Maritime Inertial Navigation System(INS-M) | |
| Type | Dubhe-M12 | |
| Accelerometer | Months Bias Repeatability(1σ) | ≤30μg |
| Months Scale Factor Accuracy(1σ) | ≤30ppm | |
| Gyro | Bias Repeatability(1σ) | ≤0.01°/hr |
| Scale Factor Accuracy(1σ) | ≤10ppm | |
| Random walk(1σ) | ≤0.003°/√hr | |
| Features | Angular Rate | ≥±400°/sec |
| Angular Acceleration | 100000°/sec2 | |
| Acceleration | ＞25g | |
| Speed accuracy(Pure inertia) | ≤0.6kn,RMS | |
| Speed accuracy(GNSS combination) | ≤0.4kn,RMS | |
| Angular Attitude | Any Orientation | |
| Startup time | ≤10sec | |
| Input/output | 3 RS422 full-duplex serial ports, 1 100M Ethernet port | |
| Alignment time | ≤30min or ≤1hr | |
| Position accuracy | Pure inertia | ≤1nm/6h or ≤1nm/12h ,CEP |
| INS/DVL Combination | ≤0.3%D,RMS | |
| INS/GNSS Combination | better than satellite accuracy | |
| Heading Accuracy | Pure inertia | ≤0.02°sec(L),RMS |
| INS/GNSS combination | ≤0.01°,RMS | |
| Pitch & Roll Accuracy | Pure inertia | ≤0.01°,RMS |
| INS/GNSS combination | ≤0.01°,RMS | |
| Characteristics | Power consumption | ＜40W |
| Dimensions(Lmm×Wmm×Hmm) | 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 | |
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.