TABLE 2

Multi-Sensor Noise Parameters

Sensor
INS
NoiseUnitValue
STIM300Ellipse2
Tactical gradeIndustrial grade
AccelerometerVelocity Random Walk (1σ)Embedded Image0.070.033
Bias Stability (1σ)mg0.050.014
Bias Time Constanth(1)a(1)a
Bias Repeatability (1σ0)mg0.75(0.14)a
GyroscopeAngular Random Walk (1σ)Embedded Image0.150.15
Bias Stability (1σ)deg/h0.57
Bias Time Constanth(1)a(1)a
Bias Repeatability (1σ0)deg/h4(70)a
ZUPTViolation Noise (1σ)m/s0.001
Lidar / Ouster OS1-64Ranging (1σ)m0.01
Angle (1σ)deg0.3
Survey (1σ0)m(0.02)a
GNSSCarrier Thermal Noise (1σ)m0.001
Code Thermal Noise (1σ)m0.25
Carrier Multipath (1σ)m0.005
Code Multipath (1σ)m0.5
Carrier Multipath Time Constants150
Code Multipath Time Constants80
Wheel Speed SensorMeasurement Noise (1σ)m/s0.05
Vehicle Kinematic ConstraintsViolation Noise (1σ)m/s0.001
  • ( )a is the value used in our analysis but not specified by the manufacturer.