sFOSN optical fiber strapdown inertial navigation system

1. Product Introduction
sFOSN inertial navigation system is a small volume optical fiber strapdown inertial navigation system, which can meet the needs of short-term autonomous navigation in complex environments, and the alignment accuracy is better than 1° (1σ), the pure inertial navigation accuracy is better than 2nm/10min (CEP). The system can integrate satellite, Doppler, odometer etc. to achieve high precision Integrated navigation.

2. Features
● Short time inertial navigation
● Integrated with satellite, Doppler, odometer and other information to achieve high-precision integrated navigation
● Small size, light weight
● Rich interfaces and strong expansibility

3. Applications
● Vessel (+ satellite +DVL)
● Land vehicle (+satellite + Odometer)
● Aviation & Aerospace (+satellite + altimeter +star sensor)
● Others (+ satellite + visual sensor +UWB +laser ranging)

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System Performance
	Pure Inertial	Satellite	DVL	Odometer	Post-Processing
Position (CEP)	≤2nm/10min	5m	1%D	1%D	≤0.3m
Speed (1σ)	≤3m/s	≤0.1m/s	≤1m/s	≤1m/s	n.a.
Heading (1σ)	≤1°	≤1°	≤1°	≤1°	≤0.05°
Altitude (1σ)	≤0.2°	≤0.05°	≤0.2°	≤0.2°	≤0.02°
Alignment time	5min	5min	5min	5min	5min
Note	The system can integrate multi-source information to achieve centimeter-level positioning for various automation/unmanned platforms.

Features
Power consumption	≤20W
Dimension	110 x 110 x 110
Weight	1.6 kg
Voltage	18V~36V
Operation temperature	-40℃ ~+60℃
MTBF	>30000h
Interface	RS-422 x 2 (multiplex), RS-232 x 2 (multiplex), CAN x 1, Ethernet x1, Odometer port x 2

Gyroscope performance
Bias stability	≤0.1°/h, 1σ
Bias repeatability	≤0.1°/h, 1σ
Scale factor repeatability	≤100ppm, 1σ
Random walk	≤0.01°/h1/2, 1σ
Accelerometer performance
Bias stability	≤100µg, 1σ
Bias repeatability	≤100µg, 1σ
Scale factor repeatability	≤100ppm, 1σ

Tomda Technologies Co., Limited