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KVH GEO FOG 3D INS

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Commercial Fiber Optic Gyro (FOG)-based Inertial Navigation Systems ​


ROBUST, PRECISE INS AND AHRS WITH EMBEDDED GNSS

Commercial Fiber Optic Gyro (FOG)-based Inertial Navigation Systems ​
High accuracy navigation & positioning in GNSS-denied environments
Small, powerful INS designed for challenging navigation & control applications
Data rates 10x faster than competing systems
Core processor is KVH’s landmark 1750 IMU
Developer kit available

HIGHLY ACCURATE INERTIAL PERFORMANCE

Six degrees of freedom (DoF) IMU with integrated high-performance FOGs and accelerometers
Groundbreaking sensor fusion algorithm extracts more data than typical Kalman filters
North-seeking gyrocompass
Attitude and Heading Reference System (AHRS)
Embedded Trimble GNSS receiver

DESIGNED FOR CRITICAL CONTROL APPLICATIONS

Embedded GNSS includes Receiver Autonomous Integrity Monitoring (RAIM) to assess signal integrity
Contains triple or dual frequency GNSS receiver (depending on single or dual antenna variant)
Provides up to 8 mm positioning accuracy
Fully supports GPS, GLONASS, GALILEO & BieDou

APPLICATIONS

Navigation in GNSS-denied environments (underground, subsea)
Navigation & control
Manned, unmanned & autonomous systems
Robotics
AHRS
Positioning & imaging
Georeferencing
Surveying
Stabilization & orientation

 
Specifiche Tecniche
Attributes
 GEO FOG 3D INS

Performance Fiber Optic Gyro

Fiber Optic Gyros
Technology

FOG

Input Rate (maximum)

±490°/sec

Bias Instability (25°C)

≤0.1°/hr, 1σ (max) 
≤0.5°/hr, 1σ (typical)

Bias vs. Temp (≤ 1 °C/min)

≤1°/hr, 1σ (max), 
≤0.7°/hr, 1σ (typical)

Scale Factor Non-Linearity (max rate, 25°C)

≤50 ppm, 1σ

Scale Factor vs. Temp. (≤ 1 °C/min)

≤200 ppm, 1σ

Angle Random Walk (25°C)

≤0.012°/√hr

(≤0.7°/hr/√Hz)

Bandwidth (-3dB)

≥440 Hz

Performance
Accelerometers
Technology - Accelerometers MEMS
Input Limit (maximum) ±10 g
Bias Instability (constant temp)  
Scale Factor Temperature Sensitivity 250 ppm/°C, 1σ (max),
≤100 ppm/°C, 1σ (typical)
Velocity Random Walk (25°C)

≤0.12 mg/√Hz
(0.23 ft/sec/√hr)

Bandwidth (-3dB)*

≥200 Hz

Electrical/Mechanical
Electrical/Mechanical
Initialization Time (valid data)

≤1.5 secs

Data Interface

Asynchronous RS-422 or Synchronous RS-422

Baud Rate

Selectable 9.6 Kbps to 921.6 Kbps

Data Rate

User selectable 1 to 1000 Hz

Dimensions (max)

90 mm L x 90 mm W x 88 mm 
(3.9" x 3.9" x 3.5")

Weight, max

655 grams (1.4 lbs.)

Power Consumption, max (typical)

550 mA & 12V (typical)

Environmental
Environmental
Temperature: Operating

-40°C to 75°C
(-40°F to 167°F)

Shock: Operating

25 g