docs: Update metadata (#26167)

This commit is contained in:
Hamish Willee
2025-12-24 14:57:46 +11:00
committed by GitHub
parent 722133f79a
commit 96f428b683
18 changed files with 668 additions and 88 deletions
+5 -5
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@@ -70,7 +70,7 @@ Airframes with more than two frequency noise spikes typically clean the first tw
Dynamic notch filters use ESC RPM feedback and/or the onboard FFT analysis.
The ESC RPM feedback is used to track the rotor blade pass frequency and its harmonics, while the FFT analysis can be used to track a frequency of another vibration source, such as a fuel engine.
ESC RPM feedback requires ESCs capable of providing RPM feedback such as [DShot](../peripherals/esc_motors.md#dshot) with telemetry connected, a bidirectional DShot set up ([work in progress](https://github.com/PX4/PX4-Autopilot/pull/23863)), or [UAVCAN/DroneCAN ESCs](../dronecan/escs.md).
ESC RPM feedback requires ESCs capable of providing RPM feedback such as [DShot](../peripherals/dshot.md) with telemetry connected, a bidirectional DShot set up ([work in progress](https://github.com/PX4/PX4-Autopilot/pull/23863)), or [UAVCAN/DroneCAN ESCs](../dronecan/escs.md).
Before enabling, make sure that the ESC RPM is correct.
You might have to adjust the [pole count of the motors](../advanced_config/parameter_reference.md#MOT_POLE_COUNT).
@@ -92,10 +92,10 @@ To reduce the control latency, we want to increase the cutoff frequency for the
The effect on latency of increasing `IMU_GYRO_CUTOFF` is approximated below.
| Cutoff (Hz) | Delay approx. (ms) |
| ------------ | ------------------ |
| 30 | 8 |
| 60 | 3.8 |
| 120 | 1.9 |
| ----------- | ------------------ |
| 30 | 8 |
| 60 | 3.8 |
| 120 | 1.9 |
However this is a trade-off as increasing `IMU_GYRO_CUTOFF` will also increase the noise of the signal that is fed to the motors.
Noise on the motors has the following consequences: