Overview

The VIB parameter group (specifically VIB_FREQ) configures the frequency of the vibration reporting system.

Key Concepts

ArduPilot tracks the health of the IMU by measuring vibration levels (clipping and variance).

Library: libraries/AP_InertialSensor.
Importance: High vibration is the #1 cause of EKF failure and erratic flight behavior.

Vibration Frequencies Hz

Default 0

Range 0 1000

Vibration frequencies on each axis.

This parameter injects simulated vibration noise into the SITL (Software In The Loop) physics engine.

Function: It sets the base frequency of the vibration.
Components: This is a Vector3f parameter (X, Y, Z). You can set different frequencies for each axis.
Usage: Used by developers to test how well the autopilot's filters (INS_GYRO_FILTER, INS_ACCEL_FILTER) handle noise.