TDF41A Airborne Optical Gyro-Inertial Navigation

The airborne optical gyro inertial navigation system (INS) utilizes optical gyros and quartz accelerometers as its core sensors, employing either a strapdown or dithered (modulated) inertial navigation system architecture. It runs advanced navigation software internally at high speed to provide real-time navigation information. This series of products can integrate satellite, celestial, altimeter, radio, and visual navigation information, based on user requirements. It supports multiple operating modes, including purely inertial and multi-sensor fusion, providing users with complete navigation parameters for their platforms.

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Introduction

Accessories

Recommendations

Type	TDF41A
Accelerometer	Months Bias Repeatability		≤500μg
	Months Scale Factor Accuracy		≤500ppm
Gyro	Bias Repeatability		≤0.1°/hr
	Scale Factor Accuracy		≤300ppm
	Random walk		≤0.03°/√hr
Features	Position accuracy	Pure inertia	≤1nm/10min
		Inertial navigation satellite combination	better than satellite accuracy
	Velocity accuracy	Pure inertia	——
		Inertial navigation satellite combination	≤0.2m/s
	Angular Rate		≥±400°/sec
	Angular Acceleration		100000°/sec2
	Acceleration		＞40g
	Angular Attitude		Any Orientation
	Alignment time		≤5min
	Input/output		2 RS422 serial ports
Alignment time	Time		＜5min
AHRS Applications Performance	Heading Accuracy	Pure inertia	——
		Satellite navigation combination	≤1°sec(L)
	Pitch & Roll Accuracy	Pure inertia	——
		Satellite navigation combination	≤0.2°
Characteristics	Power consumption		＜10W
	Dimensions		70×70×53
	Weight		＜500g
	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

Application Fields

Suitable for fixed-wing UAVs, rotary-wing UAVs, and specialized airborne vehicles.

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.

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