optic integrated navigation system INS with closed-loop fiber optic
gyroscopes, accelerometers, and high-end GNSS
The fiber optic integrated navigation system GA300 is based on
cost-effective closed-loop fiber optic gyroscopes, accelerometers,
and high-end GNSS receiving boards. It is implemented through
multi-sensor fusion and navigation solution algorithms to meet the
requirements of high-precision mobile measurement systems, large
UAVs and other applications The field requires precise measurement
of information such as attitude, heading and position.
| Parameters | Index |
| Position accuracy | Single point (RMS) | 1.2m |
| RTK(RMS) | 2cm+1ppm |
| Post-processing (RMS) | 1cm+1ppm |
| Loss lock accuracy (CEP) | 3nm(30min)10nm(1h) |
| Heading (RMS) | Single antenna | 0.05°③ |
| 0.02°(Post-processing) |
| Dual antenna | 0.1°(Baseline≥2m) |
| Loss lock retention accuracy | 0.25°(Loss lock 30min)0.5°(Loss lock 1h) |
| North seeking accuracy | 1°SecL, alignment 15min |
| Attitude (RMS) | Single antenna | 0.02° |
| Dual antenna | 0.02° |
| Post-processing | 0.01° |
| Loss lock retention accuracy | 0.25°(Loss lock 30min)0.5°(Loss lock 1h) |
| Horizontal speed accuracy (RMS) | 0.05m/s |
| Output frequency | 200Hz |
| Gyro | Range | 400°/s |
| Zero bias stability | 0.2°/h⑤； |
| Scaling factorNon-linearity | 100ppm |
| Angle random walk | 0.05°/√hr |
| Accelerometer | Range | 16g |
| Zero bias stability | 50ug⑤ |
| Scaling factorNon-linearity | 100ppm |
| Speed random walk | 0.01m/s/√hr |
| Dimensions and electrical characteristics | Size | 139 mm×136.5 mm×101mm |
| Weight | <2.7kg (not include cable) |
| Input voltage | 12～36VDC |
| Power consumption | <24W (Steady state) |
| Environmental indicators | Working temp. | -40℃~+60℃ |
| Random vibration | 6.06g,20Hz~2000Hz |
| MTBF | 30000h |
| Interface | PPS,EVENT,RS232,RS422,CAN (optional) |
| Antenna interface |
| Wheel speed sensor interface |
