Merak-A02 – GNSS Strapdown Aircraft Inertial Navigation System (FOG INS, Small) | Aerospace FOG INS
The Merak-A02 is a compact, high-performance aircraft inertial navigation system (INS) designed for UAVs and small aircraft platforms. It integrates FOG/RLG gyroscopes and quartz accelerometers in a strapdown configuration. The system’s real-time fusion center combines inertial data with GNSS, celestial, and other navigation sources, delivering accurate and reliable navigation solutions.
Key Advantages for UAV Applications
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Reliable ground and air alignment for precise initialization
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Multiple alignment mode selection to support diverse mission requirements
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Scalable navigation augmentation for integration with additional sensors
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Continuous system monitoring to ensure operational reliability
Applications
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UAVs and drones
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Small aircraft platforms
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Aerospace navigation systems
| Series | Aerospace Inertial Navigation System(INS-A) | ||
| Type | Merak-A02 | ||
| Accelerometer | Months Bias Repeatability(1σ) | ≤100μg | |
| Months Scale Factor Accuracy(1σ) | ≤100ppm | ||
| Gyro | Bias Repeatability(1σ) | ≤0.05°/hr | |
| Scale Factor Accuracy(1σ) | ≤100ppm | ||
| Random walk(1σ) | ≤0.02°/√hr | ||
| Features | Position Accuracy | Pure inertia | 5m/60s(Ref.),150m/300s(Ref.),CEP |
| INS/GNSS combination | better than GNSS | ||
| Speed Accuracy | Pure inertia | —— | |
| 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 | ＜5min | ||
| AHRS Applications Performance | Heading Accuracy | Pure inertia | ≤0.5°secL+0.1°/h,RMS |
| INS/GNSS combination | ≤0.3°,RMS | ||
| Pitch & Roll Accuracy | Pure inertia | ≤0.1°,RMS | |
| INS/GNSS combination | ≤0.05°,RMS | ||
| Characteristics | Power consumption | ＜15W | |
| Dimensions | 100×100×90 | ||
| Weight | ＜1.35kg | ||
| 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 | ||
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