Hi Wenhan,
Here are a couple of ways that you might be able to achieve what you are looking for:
- In this model, we control the angular position and thrust, not the commanded speed directly. You can make the quadcopter model less responsive by tuning the parameters of the guidance model (see this example, which explains how you can tune the system-level behavior to fit your desired response).
- You could capture camera images at a higher frequency, so that ORB-SLAM always has sufficient overlap between subsequent images. You can adjust the sample time of the Simulation 3D Camera block. For example, if you want to capture images at 60 Hz, set the "Sample time" parameter to 1/60.
Thanks,
Remo
