Merak-A03 – GNSS Strapdown Aircraft Inertial Navigation System (FOG INS)
The Merak-A03 is a high-performance aircraft inertial navigation system (INS) designed for UAVs and aerospace applications. It uses FOG/RLG gyroscopes and quartz accelerometers in a strapdown configuration to deliver accurate, real-time navigation solutions.
Equipped with an advanced real-time data fusion center, the system integrates inertial measurements with GNSS, celestial navigation, and other data sources, supporting both pure inertial and multi-source navigation modes.
Key Advantages for UAV and Aircraft Applications
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Reliable ground and air alignment for precise navigation initialization
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Multiple alignment mode selection to meet operational requirements
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Scalable navigation augmentation to integrate additional sensors or data sources
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Continuous system monitoring for real-time fault detection and operational reliability
The Merak-A03 FOG INS provides highly accurate, real-time navigation data, making it suitable for UAVs, special aircraft, and aerospace navigation applications.
| Series | Aerospace Inertial Navigation System(INS-A) | ||
| Type | Merak-A03 | ||
| 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) | ≤0.01°/√hr | ||
| Features | Position Accuracy | Pure inertia | ≤4nm/1h,CEP |
| INS/GNSS combination | better than GNSS | ||
| Speed Accuracy | Pure inertia | ≤3.0m/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 | ＜5min | ||
| AHRS Applications Performance | Heading Accuracy | Pure inertia | ≤0.2°sec(L),RMS |
| INS/GNSS combination | ≤0.1°,RMS | ||
| Pitch & Roll Accuracy | Pure inertia | ≤0.05°,RMS | |
| INS/GNSS combination | ≤0.03°,RMS | ||
| Characteristics | Power consumption | ＜15W | |
| Dimensions | 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 | ||
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