IMU navigation system IGI IMU AeroControl II-d (256Hz)

Engineering specifications:

Optic-fiber gyroscope	offset of 0.1°/hour
Optic-fiber gyroscope	drift of 0.02°/√(hour)
Angle resolution	0.0019 millirad (256 Hz)
Accelerometer bias	0.5 milligal
Accelerometer resolution	0,061*10-3m/second (256 Hz)
Reading speed	256 Hz

Angle resolution:

Depending on the GPS state and with the aid of AEROCONTROL DGPS and the IMU-IId data following accuracies are expected to be generated when distance to the base station станции < 30. 

In layout	RMS <0.05 m	Phi/Omega	RMS 0.004°
On the basis of altitude	RMS <0.1 m	Kappa	RMS 0.01°

Advantages of this navigation system:

• Capability to operate and control the separated system and integrated one apart (in combination with CCNS5);
• Provision of the direct geo-positioning;
• Real-time measurements;
• Considerable reduction of geodesic operations.