Aviation Navigation TDF61A Airborne Optical Gyro Inertial Navigation
1 Introduction
The airborne optical gyro inertial navigation system (INS) employs optical gyros and quartz accelerometers as its core sensing components, operating under either a strapdown or dither-modulated inertial navigation architecture. High-speed embedded navigation software processes sensor data in real time to deliver continuous positioning and orientation outputs. This product series integrates multi-source navigation inputs including satellite signals (GNSS), celestial observations, barometric altimetry, radio navigation aids, and visual odometry based on mission-specific configurations. It offers operational flexibility through selectable modes ranging from standalone inertial navigation to adaptive multi-sensor fusion, delivering comprehensive platform states (position, velocity, attitude) across dynamic environments.
2 Application Fields
Suitable for fixed-wing UAVs, rotary-wing UAVs, and specialized airborne vehicles.
3 Performance Characteristics
Capable of alignment on ground-based vibrating platforms and in-flight alignment.
Supports switching between self-alignment, moving-base alignment, and transfer alignment based on customer needs.
Supports multi-sensor fusion, incorporating satellite, celestial, altimeter, radio, and visual navigation data.
Equipped with system fault detection and alarm functions.
4 Main parameters
| Type |
TDF61A |
| Accelerometer |
Months Bias Repeatability |
≤50μg |
| Months Scale Factor Accuracy |
≤500ppm |
| Gyro |
Bias Repeatability |
≤0.3°/hr |
| Scale Factor Accuracy |
≤500ppm |
| Random walk |
≤0.01°/√hr |
| Features |
Position accuracy |
Pure inertia |
≤4nm/1h |
| Inertial navigation satellite combination |
better than satellite accuracy |
| Velocity accuracy |
Pure inertia |
≤3.0m/s |
| Inertial navigation satellite combination |
≤0.2m/s |
| Angular Rate |
≥±400°/sec |
| Angular Acceleration |
100000°/sec2 |
| Acceleration |
＞25g |
| Angular Attitude |
Any Orientation |
| Alignment time |
≤5min |
| Input/output |
3 RS422 full-duplex serial ports, 1 100M Ethernet port |
| Alignment Time |
Time |
＜5min |
| AHRS Applications Performance |
Heading Accuracy |
Pure inertia |
≤0.4°sec(L) |
| Satellite navigation combination |
≤0.2°sec(L) |
| Pitch & Roll Accuracy |
Pure inertia |
≤0.08° |
| Satellite navigation combination |
≤0.03° |
| 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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Aviation Navigation TDF61A Airborne Optical Gyro Inertial Navigation Images
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