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Jianxin Sun

Last seen: 3 days ago Active since 2020

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Answered
UAV Toolbox Support Package for PX4 Autopilots : Simulink FlightController Build Failed
Hi, I assume you are trying out the following example: https://www.mathworks.com/help/supportpkg/px4/ref/simulator-plant-model...

10 days ago | 0

Answered
visual navigation of a satellite during landing on the moon , creation of the lunar scenario and visualization via unreal engine
Hi Simone, You can create and use Unreal scene for Simulink following steps in https://www.mathworks.com/help/uav/ug/customize-...

1 month ago | 1

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Answered
How do I 'connect' to a COM port when using mavlinkio 'connect' , only UDP port is documented
Hi Philip, Serial port connection is not supported out of box. You could use serialport object to exchange binary data and use ...

1 month ago | 0

Answered
i am planning a rrt path using fixed wing uav state space, i want a smooth path can anyone tell what values of parameters to tweek?
The kinematic model used by Dubins path determines the turn radius using following equation based on coordinated flight conditio...

3 months ago | 0

Answered
I am getting a 3d path using rrt in Se3 statespace ,i ant to smoothen this path how can i do this?
https://www.mathworks.com/help/uav/ug/motion-planning-with-rrt-for-fixed-wing-uav.html may help you.

3 months ago | 0

Answered
uav package delivery example: question about stateflow chart "Guidance mode selector"
Hi Sander, The Pose(3) is the z value of the UAV pose in NED frame, meaning that Pose(3) is -altitude. The condition Pose(3) >=...

5 months ago | 0

Answered
Is it possible to add occupaied property to mesh in an uavScenario object?
Hi Massimo, The uavScenario currently doesn't support conversion to binary occupancy map. Thus the IsBinaryOccupied input is no...

5 months ago | 0

Answered
I want to custom my statespace like the example"Motion Planning with RRT for Fixed-Wing UAV",but the following error occurs"Abstract classes cannot be instantiated."
Hi Wenjun, The error you received is about missing implmenetation in your state space class. In this example, the UAV state s...

5 months ago | 0

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Answered
How can replace default controller parts of PX4 with custom algorithms controller?
Hi SeungWoo, You can use the support package to replace the PX4 controller only. Please refer to the "integration with general ...

6 months ago | 0

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Answered
HITL example of 'UAV Toolbox Support Package for PX4 Autopilots' is disabled
Hi SeungWoo, Have you ran the openExample('px4/FollowSetOfWaypointsQGCHITLSimulationExample') first in the command line? It w...

6 months ago | 0

Answered
Using Point Cloud from a Lidar Bloc
Hi Gaetan, For your first question, Simulation 3D Lidar block returns two types of information. By default it outputs the point...

6 months ago | 0

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Answered
How to modify mission in QGC while avoiding obstacles in a photorealistic simulation environment
Hi Robert, Currently the guidance logic in this example is set to track the 2nd waypoint user specified in the mission when per...

6 months ago | 0

Answered
How to use 6DOF Plant Model while flying obstacle avoidance in a photorealistic simulation environment?
Hi Robert, After you used the "add high fidelity plant" short cut, you can use the following parameters: useQGC = 1 % takes mi...

6 months ago | 0

Answered
How to modify dubins statespace for 3d Maps?
Hi, The following example https://www.mathworks.com/help/uav/ug/motion-planning-with-rrt-for-fixed-wing-uav.html might help you...

8 months ago | 1

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Answered
control the Gimbal orientation
Hi, Ulrich, You can use "Simulation 3D Camera" block to achieve this effect. https://www.mathworks.com/help/uav/ref/simulation3...

10 months ago | 0

Answered
Unable to load .ulg when using Flight Log Analyzer from UAV toolbox
Thank you for bringing this issue to our attention. Our development team is closely reviewing this issue and considering solutio...

1 year ago | 2

Answered
Control UAV in Gazebo With Simulink
Set motor joint velocity will rotate the rotors but that will not generate lift since Gazebo is not simulating aerodynamices. Yo...

1 year ago | 1

Answered
Is there a way to create a Dubins path given a set of waypoints?
The connect method of uavDubinsConnection can accept pairs of start and goal poses. Assume your waypoints are defined as a Nx4 m...

1 year ago | 0

Answered
Mathematical Model used in UAV toolbox
Math behind UAV Guidance Models: multirotor fixedwing

1 year ago | 1

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Answered
Modify Simulation 3D UAV Vehicle block
Hi Victoria, Thank you for your interest in this feature. This is something our development team is aware of and is considering...

1 year ago | 0

Answered
What is Lookahead Distance?
Hi Shubham, The lookahead distance determines how far ahead the target location would be for the UAV along the path defined by ...

1 year ago | 0

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Answered
Get an error when changing the baseMission waypoint in "Example:UAV Package Delivery"
Hi Wenhan, Can you clarify how you changed the waypoints in "noQGC/baseMission" block? You should be able to update the waypoin...

1 year ago | 1

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Answered
Is it possible to simulate State Space model using live inputs coming from Gazebo environment?
Hi, Have you considered using https://www.mathworks.com/help/simulink/slref/statespace.html from Simulink? Thanks, Jianxin

1 year ago | 0

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Answered
How to change waypoints while running the simulation model when using UAV toolbox(Path Manager)?
Hi Shichen, Mission data is loaded in "uavPackageDelivery/Ground Control Station/Get Flight Mission/noQGC" subsystem when model...

1 year ago | 1

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Answered
Usage of INS, GPS sensors and trajectories in 3D Unreal Engine Scenario (UAV Toolbox)
Hi Felix, For GPS sensor in Simulink, currently there is no out of box blocks for it. But you can create a MATLAB function bloc...

1 year ago | 0

Answered
UAV Toolbox Guidance Model block has mask callback that modifies model at compile time, which prohibits multi-instance model reference
Hi Zhang, Thanks for bringing up this issue. You can try a few workarounds: You can change the model reference block's simulat...

1 year ago | 0

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Answered
Feature Request: UAV Animation block, https://www.mathworks.com/help/uav/ref/uavanimation.html
Hi Yingao, Thank you for your interest in this feature. This is something our development team is aware of and is considering. ...

1 year ago | 0

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Answered
Customize Simulation 3D UAV Vehicle
Hi Benjamin, Thank you for your interest in this UAV Vehicle customization feature. This is something our development team is a...

1 year ago | 0

Answered
How does the uavWaypointFollower object work?
Hi Shubham, Please check the reference page in https://www.mathworks.com/help/uav/ref/uavwaypointfollower-system-object.html [...

1 year ago | 0

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Answered
How to obtain acceleration and angular velocity control inputs to track a fixed-wing UAV trajectory?
Hi Shubham, You can check the exampleHelperUAVDerivatives.m file in the example you referred to. This file should be in the sam...

1 year ago | 0

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