mirror of
https://gitee.com/mirrors_PX4/PX4-Autopilot.git
synced 2026-11-01 06:11:35 +08:00
docs: Update metadata (#26167)
This commit is contained in:
@@ -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:
|
||||
|
||||
Reference in New Issue
Block a user