diff --git a/docs/ko/config/_autotune.md b/docs/ko/config/_autotune.md
index a6eab14e0e..5c35b38bfe 100644
--- a/docs/ko/config/_autotune.md
+++ b/docs/ko/config/_autotune.md
@@ -43,13 +43,13 @@ To make sure the vehicle is stable enough for auto-tuning:
2. Take off and
hover at 1m above ground in [Altitude mode](../flight_modes_mc/altitude.md) or [Stabilized mode](../flight_modes_mc/manual_stabilized.md)
fly at cruise speed in [Position mode](../flight_modes_fw/position.md) or [Altitude mode](../flight_modes_fw/altitude.md)
.
3. Use the RC transmitter roll stick to perform the following maneuver, tilting the vehicle just a few degrees: _roll left > roll right > center_ (The whole maneuver should take about 3 seconds).
- 기체는 2번의 진동 이내에서 안정화되어야 합니다.
+ 기체는 2번의 진동 이내에서 안정화되어야 합니다.
4. 각각의 시도에서 더 큰 진폭으로 기울이면서 기동을 반복합니다.
- 기체가 ~20도에서 2번의 진동 내에서 안정화될 수 있으면 다음 단계로 이동합니다.
+ 기체가 ~20도에서 2번의 진동 내에서 안정화될 수 있으면 다음 단계로 이동합니다.
5. 피치 축에서 동일한 동작을 반복합니다.
- As above, start with small angles and confirm that the vehicle can stabilise itself within 2 oscillations before increasing the tilt.
+ As above, start with small angles and confirm that the vehicle can stabilise itself within 2 oscillations before increasing the tilt.
If the drone can stabilize itself within 2 oscillations it is ready for the [auto-tuning procedure](#auto-tuning-procedure).
@@ -72,41 +72,56 @@ The test steps are:
1. Perform the [pre-tuning test](#pre-tuning-test).
2. Takeoff using RC control in [Altitude mode](../flight_modes_mc/altitude.md).
- Hover the vehicle at a safe distance and at a few meters above ground (between 4 and 20m).
- Once flying at cruise speed, activate [Hold mode](../flight_modes_fw/hold.md).
- This will guide the plane to fly in circle at constant altitude and speed.
+ Hover the vehicle at a safe distance and at a few meters above ground (between 4 and 20m).
+ Once flying at cruise speed, activate [Hold mode](../flight_modes_fw/hold.md).
+ This will guide the plane to fly in circle at constant altitude and speed.
3. Enable autotune.
-
-
TIP
+
+
TIP
- If an [Enable/Disable Autotune Switch](#enable-disable-autotune-switch) is configured you can just toggle the switch to the "enabled" position.
+ If an [Enable/Disable Autotune Switch](#enable-disable-autotune-switch) is configured you can just toggle the switch to the "enabled" position.
-
+
- 1. In QGroundControl, open the menu **Vehicle setup > PID Tuning**:
+ 1. In QGroundControl, open the menu **Vehicle setup > PID Tuning**:
- 
+ 
- 2. Select either the _Rate Controller_ or _Attitude Controller_ tabs.
+ 2. Select either the _Rate Controller_ or _Attitude Controller_ tabs.
- 3. Ensure that the **Autotune enabled** button is enabled (this will display the **Autotune** button and remove the manual tuning selectors).
+ 3. Ensure that the **Autotune enabled** button is enabled (this will display the **Autotune** button and remove the manual tuning selectors).
- 4. Read the warning popup and click on **OK** to start tuning.
-
-4. The drone will first start to perform quick roll motions followed by pitch and yaw motions.
- The progress is shown in the progress bar, next to the _Autotune_ button.
+ 4. Read the warning popup and click on **OK** to start tuning.
+4. The drone will first start to perform quick roll motions followed by pitch and yaw motions.
+ The progress is shown in the progress bar, next to the _Autotune_ button.
+
+
+
+4. The drone will first start to perform quick roll motions followed by pitch and yaw motions. When [`FW_AT_SYSID_TYPE`](../advanced_config/parameter_reference.md#FW_AT_SYSID_TYPE) is set to linear/logarithmic sine sweep (recommended), the max rates are approximately 45 deg/s for roll and 30 deg/s for pitch and yaw.
+ The progress is shown in the progress bar, next to the _Autotune_ button.
+
+
+
+
5. Manually land and disarm to apply the new tuning parameters.
- Takeoff carefully and manually test that the vehicle is stable.
+ Takeoff carefully and manually test that the vehicle is stable.
5. The tuning will be immediately/automatically be applied and tested in flight (by default).
- PX4 will then run a 4 second test and revert the new tuning if a problem is detected.
+ PX4 will then run a 4 second test and revert the new tuning if a problem is detected.
+
+The figure below shows how steps 4 and 5 might look in flight on the pitch axis.
+The pitch rate gradually increases up until it reaches the target.
+This amplitude is then held while the signal frequency is increased.
+You can then see how the tuned system is able to follow the setpoint in the test signal.
+
+
@@ -174,9 +189,20 @@ Fast oscillations (more than 1 oscillation per second): this is because the gain
### 자동 튜닝 실패
+
+
If the drone was not moving enough during auto-tuning, the system identification algorithm might have issues to find the correct coefficients.
-Increase the
[MC_AT_SYSID_AMP](../advanced_config/parameter_reference.md#MC_AT_SYSID_AMP)
[FW_AT_SYSID_AMP](../advanced_config/parameter_reference.md#FW_AT_SYSID_AMP)
parameter by steps of 1 and trigger the auto-tune again.
+Increase the [MC_AT_SYSID_AMP](../advanced_config/parameter_reference.md#MC_AT_SYSID_AMP) parameter by steps of 1 and trigger the auto-tune again.
+
+
+
+
+By default, the autotune maneuvers ensure that a sufficient angular rate is reached for system identification. The target rates are approximately 45 deg/s for roll and 30 deg/s for pitch and yaw.
+
+If the signal-to-noise ratio of the vehicle is low, the system identification algorithm might have issues finding the correct coefficients. Ensure that there is no excessive noise and/or platform vibration.
+
+
### The drone oscillates after auto-tuning
diff --git a/docs/ko/frames_rover/index.md b/docs/ko/frames_rover/index.md
index c97c33b8b9..7cf786c054 100644
--- a/docs/ko/frames_rover/index.md
+++ b/docs/ko/frames_rover/index.md
@@ -64,9 +64,10 @@ Each wheel is driven by its own motor, and by controlling the speed and directio
## 시뮬레이션
-[Gazebo](../sim_gazebo_gz/index.md) provides simulations for ackermann and differential rovers:
+PX4 provides synthetic simulation models for [Gazebo](../sim_gazebo_gz/index.md) of all three rover types to test the software and validate changes and new features:
- [Ackermann rover](../sim_gazebo_gz/vehicles.md#ackermann-rover)
- [Differential rover](../sim_gazebo_gz/vehicles.md#differential-rover)
+- [Mecanum rover](../sim_gazebo_gz/vehicles.md#mecanum-rover)

diff --git a/docs/ko/releases/main.md b/docs/ko/releases/main.md
index f77ccd22fa..e041703029 100644
--- a/docs/ko/releases/main.md
+++ b/docs/ko/releases/main.md
@@ -58,7 +58,10 @@ Please continue reading for [upgrade instructions](#upgrade-guide).
### 시뮬레이션
-- TBD
+- Overhaul rover simulation:
+ - Add synthetic differential rover model: [PX4-gazebo-models#107](https://github.com/PX4/PX4-gazebo-models/pull/107)
+ - Add synthetic mecanum rover model: [PX4-gazebo-models#113](https://github.com/PX4/PX4-gazebo-models/pull/113)
+ - Update synthetic ackermann rover model: [PX4-gazebo-models#117](https://github.com/PX4/PX4-gazebo-models/pull/117)
### Ethernet
@@ -91,6 +94,7 @@ Please continue reading for [upgrade instructions](#upgrade-guide).
- Removed deprecated rover module ([PX4-Autopilot#25054](https://github.com/PX4/PX4-Autopilot/pull/25054)).
- Add support for [Apps & API](../flight_modes_rover/api.md) ([PX4-Autopilot#25074](https://github.com/PX4/PX4-Autopilot/pull/25074), [PX4-ROS2-Interface-Lib#140](https://github.com/Auterion/px4-ros2-interface-lib/pull/140)).
+- Update [rover simulation](../frames_rover/index.md#simulation) ([PX4-Autopilot#25644](https://github.com/PX4/PX4-Autopilot/pull/25644)) (see [Simulation](#simulation) release note for details).
### ROS 2
diff --git a/docs/ko/sim_gazebo_gz/index.md b/docs/ko/sim_gazebo_gz/index.md
index 2ef2f45036..d93011de4c 100644
--- a/docs/ko/sim_gazebo_gz/index.md
+++ b/docs/ko/sim_gazebo_gz/index.md
@@ -50,22 +50,23 @@ This runs both the PX4 SITL instance and the Gazebo client.
The supported vehicles and `make` commands are listed below.
Note that all gazebo make targets have the prefix `gz_`.
-| Vehicle | 통신 | `PX4_SYS_AUTOSTART` |
-| ------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ----------------------------------- | ------------------- |
-| [Quadrotor (x500)](../sim_gazebo_gz/vehicles.md#x500-quadrotor) | `make px4_sitl gz_x500` | 4001 |
-| [X500 Quadrotor with Depth Camera (Front-facing)](../sim_gazebo_gz/vehicles.md#x500-quadrotor-with-depth-camera-front-facing) | `make px4_sitl gz_x500_depth` | 4002 |
-| [Quadrotor(x500) with Vision Odometry](../sim_gazebo_gz/vehicles.md#x500-quadrotor-with-visual-odometry) | `make px4_sitl gz_x500_vision` | 4005 |
-| [Quadrotor(x500) with 1D LIDAR (Down-facing)](../sim_gazebo_gz/vehicles.md#x500-quadrotor-with-1d-lidar-down-facing) | `make px4_sitl gz_x500_lidar_down` | 4016 |
-| [Quadrotor(x500) with 2D LIDAR](../sim_gazebo_gz/vehicles.md#x500-quadrotor-with-2d-lidar) | `make px4_sitl gz_x500_lidar_2d` | 4013 |
-| [Quadrotor(x500) with 1D LIDAR (Front-facing)](../sim_gazebo_gz/vehicles.md#x500-quadrotor-with-1d-lidar-front-facing) | `make px4_sitl gz_x500_lidar_front` | 4017 |
-| [Quadrotor(x500) with gimbal (Front-facing) in Gazebo](../sim_gazebo_gz/vehicles.md#x500-quadrotor-with-gimbal-front-facing) | `make px4_sitl gz_x500_gimbal` | 4019 |
-| [VTOL](../sim_gazebo_gz/vehicles.md#standard-vtol) | `make px4_sitl gz_standard_vtol` | 4004 |
-| [Plane](../sim_gazebo_gz/vehicles.md#standard-plane) | `make px4_sitl gz_rc_cessna` | 4003 |
-| [Advanced Plane](../sim_gazebo_gz/vehicles.md#advanced-plane) | `make px4_sitl gz_advanced_plane` | 4008 |
-| [Differential Rover](../sim_gazebo_gz/vehicles.md#differential-rover) | `make px4_sitl gz_r1_rover` | 4009 |
-| [Ackermann Rover](../sim_gazebo_gz/vehicles.md#ackermann-rover) | `make px4_sitl gz_rover_ackermann` | 4012 |
-| [Quad Tailsitter VTOL](../sim_gazebo_gz/vehicles.md#quad-tailsitter-vtol) | `make px4_sitl gz_quadtailsitter` | 4018 |
-| [Tiltrotor VTOL](../sim_gazebo_gz/vehicles.md#tiltrotor-vtol) | `make px4_sitl gz_tiltrotor` | 4020 |
+| Vehicle | 통신 | `PX4_SYS_AUTOSTART` |
+| ------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ------------------------------------- | ------------------- |
+| [Quadrotor (x500)](../sim_gazebo_gz/vehicles.md#x500-quadrotor) | `make px4_sitl gz_x500` | 4001 |
+| [X500 Quadrotor with Depth Camera (Front-facing)](../sim_gazebo_gz/vehicles.md#x500-quadrotor-with-depth-camera-front-facing) | `make px4_sitl gz_x500_depth` | 4002 |
+| [Quadrotor(x500) with Vision Odometry](../sim_gazebo_gz/vehicles.md#x500-quadrotor-with-visual-odometry) | `make px4_sitl gz_x500_vision` | 4005 |
+| [Quadrotor(x500) with 1D LIDAR (Down-facing)](../sim_gazebo_gz/vehicles.md#x500-quadrotor-with-1d-lidar-down-facing) | `make px4_sitl gz_x500_lidar_down` | 4016 |
+| [Quadrotor(x500) with 2D LIDAR](../sim_gazebo_gz/vehicles.md#x500-quadrotor-with-2d-lidar) | `make px4_sitl gz_x500_lidar_2d` | 4013 |
+| [Quadrotor(x500) with 1D LIDAR (Front-facing)](../sim_gazebo_gz/vehicles.md#x500-quadrotor-with-1d-lidar-front-facing) | `make px4_sitl gz_x500_lidar_front` | 4017 |
+| [Quadrotor(x500) with gimbal (Front-facing) in Gazebo](../sim_gazebo_gz/vehicles.md#x500-quadrotor-with-gimbal-front-facing) | `make px4_sitl gz_x500_gimbal` | 4019 |
+| [VTOL](../sim_gazebo_gz/vehicles.md#standard-vtol) | `make px4_sitl gz_standard_vtol` | 4004 |
+| [Plane](../sim_gazebo_gz/vehicles.md#standard-plane) | `make px4_sitl gz_rc_cessna` | 4003 |
+| [Advanced Plane](../sim_gazebo_gz/vehicles.md#advanced-plane) | `make px4_sitl gz_advanced_plane` | 4008 |
+| [Quad Tailsitter VTOL](../sim_gazebo_gz/vehicles.md#quad-tailsitter-vtol) | `make px4_sitl gz_quadtailsitter` | 4018 |
+| [Tiltrotor VTOL](../sim_gazebo_gz/vehicles.md#tiltrotor-vtol) | `make px4_sitl gz_tiltrotor` | 4020 |
+| [Differential Rover](../sim_gazebo_gz/vehicles.md#differential-rover) | `make px4_sitl gz_rover_differential` | 50000 |
+| [Ackermann Rover](../sim_gazebo_gz/vehicles.md#ackermann-rover) | `make px4_sitl gz_rover_ackermann` | 51000 |
+| [Mecanum Rover](../sim_gazebo_gz/vehicles.md#mecanum-rover) | `make px4_sitl gz_rover_mecanum` | 52000 |
All [vehicle models](../sim_gazebo_gz/vehicles.md) (and [worlds](#specify-world)) are included as a submodule from the [Gazebo Models Repository](../sim_gazebo_gz/gazebo_models.md) repository.
diff --git a/docs/ko/sim_gazebo_gz/vehicles.md b/docs/ko/sim_gazebo_gz/vehicles.md
index 5638f9b63f..6c93b94d49 100644
--- a/docs/ko/sim_gazebo_gz/vehicles.md
+++ b/docs/ko/sim_gazebo_gz/vehicles.md
@@ -185,7 +185,7 @@ make px4_sitl gz_tiltrotor
[Differential Rover](../frames_rover/index.md#differential) uses the [rover world](../sim_gazebo_gz/worlds.md#rover) by default.
```sh
-make px4_sitl gz_r1_rover
+make px4_sitl gz_rover_differential
```

@@ -199,3 +199,13 @@ make px4_sitl gz_rover_ackermann
```

+
+### Mecanum Rover
+
+[Mecanum Rover](../frames_rover/index.md#mecanum) uses the [rover world](../sim_gazebo_gz/worlds.md#rover) by default.
+
+```sh
+make px4_sitl gz_rover_mecanum
+```
+
+