SNC300C-B0 UAV Inertial Navigation System

Product overview
SNC300C-B0 is a compact inertial navigation system using fiber optic gyroscope (FOG) and micro electro mechanical system (MEMS) accelerometer. It can use external GNSS accurate timing and positioning information for Inertial / satellite integrated navigation. When external GNSS information is invalid, the inertial navigation system has high pure inertial navigation accuracy retention ability.

1. Product features
▶ It has the function of shaking base / moving base alignment
▶ Self seeking north
▶ External GNSS / atmosphere multi information fusion integrated navigation
▶ The accuracy is maintained for a long time without external information
▶ Support users to customize on demand

2. Main application fields
▶ UAV
▶ Rocket
▶ Mobile measurement
▶ Ground, tunnel and other track detection and measurement
▶ High precision stable platform

3, Physical Size and Electrical Characteristics, System Performance Indicators
Physical dimensions and electrical characteristics
Voltage: 9-36v DC
Power consumption: ＜ 8W
Dimensions: 111mm x 72mm x 43mm (length, width and height)
Weight: ＜ 450g

Environmental indicators
Operating temperature: - 40 ℃ ~ + 60 ℃
Storage temperature: - 45 ℃ ~ + 70 ℃
Vibration: 5 ~ 2000Hz, 6.06g (with damping)
Impact: 30g, 11ms (with damping)
Service life: > 15 years
Continuous working time: > 24h

Grounding characteristics
RS422 × one
RS232 × two
PPSx1

System performance index
Test condition Index
positioning accuracy
External GNSS valid, single point: 1.2m (RMS)
External GNSS valid, RTK: 2cm + 1ppm (RMS)
Pure inertial horizontal positioning holding ①: 100M / 5min (CEP)
600m/10min (CEP)
2nm/30min ( CEP)
Airspeed combination horizontal positioning holding ②: 1nm / 30min (CEP)
Heading accuracy
Single antenna: 0.1 ° 3 ③
Dual antenna: 0.2 ° / L (L is the baseline length) (RMS)
Course keeping: 0.3 ° / 30min (RMS), 1 ° / h (RMS)
Self north seeking accuracy: 1 ° SECL, alignment 15min ④
Attitude accuracy
GNSS effective: 0.02 ° (RMS)
Attitude hold (GNSS failure): 0.3 ° / 30min (RMS), 1 ° / h (RMS)
Speed accuracy GNSS valid, single point L1 / L2: 0.1m/s (RMS)

IMU performance index
Fiber optic gyroscope
Measuring range: ± 400 ° / S
Zero bias stability: ≤ 0.3 ° / h
Quartz flexible accelerometer
Measuring range: ± 20g
Zero bias stability: ≤ 100 μ g