Research Article

Performance of Tightly Coupled Integration of GPS/BDS/MEMS-INS/Odometer for Real-Time High-Precision Vehicle Positioning in Urban Degraded and Denied Environment

Table 1

Main performance specifications of the INS sensors.

ParameterMEMS INSFOG INS

Accelerometer bias stability (mg)20.2
Velocity random walk (μg/sqrt(Hz))12020
Gyro bias stability (deg/h)50.05
Angular random walk (deg/sqrt(h))0.40.005