Fusion on zed and imu, but the map drifted immediately

[Yuli]

Dear Mathieu,
Not until just now, I found the initial angular velocity of my IMU, mpu_6050,
is not zero, which,( ideally should be zero, right ?) caused map drifted in the very first beginning.
At least,now I found it's not robot_localization's problem.
Thanks.



Ming