Marine Fiber-Optic Inertial Navigation System (FOG-INS) for High-Precision Maritime Guidance & Positioning
Product Description
The Marine Fiber-Optic Inertial Navigation System (FOG-INS) uses a fiber-optic gyroscope (FOG) and a quartz accelerometer as its primary sensing elements.
With strapdown inertial navigation technology and real-time computation algorithms, the system provides high-precision navigation outputs under continuous maritime operation.
It supports multiple operation modes, including standalone inertial navigation and FOG/GNSS integrated navigation, ensuring reliable performance even in GNSS-limited or offshore environments.
Real-time outputs include heading, roll, pitch, velocity, and position, enabling stable navigation control for marine platforms.
Advantages
- ✓ High-Performance FOG Sensor Architecture
Low drift, high stability, and long-term accuracy for continuous marine use. - ✓ GNSS + Inertial Hybrid Navigation
Maintains situational navigation even with GNSS blockages or outages. - ✓ Real-Time Navigation Data Output
Supports vessel control, dynamic positioning, and stabilization systems. - ✓ Compact Strapdown Design
Suitable for ships, surface vehicles, and complex maritime payloads. - ✓ Reliable Marine Operation
Resistant to vibration, humidity, temperature changes, and long-duration motion.
Applications
Designed for maritime & naval environments:
- ✔ Cargo ships & merchant vessels
- ✔ Offshore operation vessels (OSV)
- ✔ Coast guard & law enforcement vessels
- ✔ High-speed patrol boats
- ✔ Research & hydrographic survey vessels
- ✔ Autonomous surface vehicles (USV)
- ✔ Subsea navigation support & tracking systems
- ✔ Dynamic positioning (DP) systems
- ✔ Marine attitude and heading reference platforms
| Series | Maritime Inertial Navigation System(INS-M) | |
| Type | Merak-M03 | |
| Accelerometer | Months Bias Repeatability(1σ) | ≤50μg |
| Months Scale Factor Accuracy(1σ) | ≤50ppm | |
| Gyro | Bias Repeatability(1σ) | ≤0.02°/hr |
| Scale Factor Accuracy(1σ) | ≤50ppm | |
| Random walk(1σ) | ≤0.006°/√hr | |
| Features | Angular Rate | ≥±400°/sec |
| Angular Acceleration | 100000°/sec2 | |
| Acceleration | ＞25g | |
| Speed accuracy(Pure inertia) | ≤3.0kn,RMS | |
| Speed accuracy(GNSS combination) | ≤0.4kn,RMS | |
| Angular Attitude | Any Orientation | |
| Startup time | ≤10 sec | |
| Input/output | 3 RS422 full-duplex serial ports, 1 100M Ethernet port | |
| Alignment time | ≤15min | |
| Position accuracy | Pure inertia | ≤4nm/1h,CEP |
| INS/DVL Combination | ≤0.6%D,RMS | |
| INS/GNSS Combination | better than satellite accuracy | |
| Heading Accuracy | Pure inertia | ≤0.2°sec(L),RMS |
| INS/GNSS combination | ≤0.1°,RMS | |
| Pitch & Roll Accuracy | Pure inertia | ≤0.04°,RMS |
| INS/GNSS combination | ≤0.02°,RMS | |
| Characteristics | Power consumption | ＜15W |
| Dimensions(Lmm×Wmm×Hmm) | 110×110×100 | |
| Weight | ＜1.7kg | |
| Temperature | -40℃~60℃ | |
| Shock | 15g,Half-sine wave 11ms | |
| Input Voltage | DC24V(±25%) | |
| cooling | Conduction to mounting plate | |
| Vibration | 20~2000Hz,6.06g | |
| MTBF | ＞20000 hours | |
Get in Touch
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