Overview

The FLTR parameter group (specifically FLTR_RNG or BARO_FLTR_RNG) defines the "Sanity Check" range for the barometer filter.

Key Concepts

1. Filter Range (FLTR_RNG)

This parameter sets the maximum allowable change in altitude reading between successive samples that the filter will accept.

• Purpose: Rejects extreme, non-physical pressure spikes (e.g., from an electrical glitch or a door slamming in an indoor environment) before they are passed to the altitude controller.

Parameter Breakdown

• FLTR_RNG: Range in meters.

Developer Notes

• Library: libraries/AP_Baro.
• Relationship: Part of the robustness layer of the AP_Baro library.