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SBPL Non-Holonomic Motion Primitives

asked 2013-04-09 12:53:43 -0500

blake11 gravatar image

updated 2013-04-10 01:34:14 -0500

I am not having much luck creating motion primitives that follow non-holonomic type constraints. I keep running into the issue that I have no end poses that match to a start pose. Is there anyone willing to share a modified .m that they were able to implement these types of mprims?

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Are you still looking for the answer? If yes, can you please provide more details about your project?

rsafonov gravatar image rsafonov  ( 2013-05-01 05:46:18 -0500 )edit

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answered 2013-05-28 04:48:06 -0500

Aditya gravatar image

I am working on a similar problem. I have a dynamical model of a boat (Nomoto turn-rate model, with side-slip and linear speed dynamics added) that I am trying to use to generate motion primitives. As I understand, ideally I should choose primitives that end up in specific grid cells. However, as mentioned by Martin, it is not necessarily easily possible with the non-holonomic model I am using.

In my case, currently I am applying certain control actions for a specific period of time to forward propagate the dynamic model. Then whatever end-pose I end up with, I map it into its corresponding grid cell. Depending on discretization used, this approach will result in discontinuities at end grid points.

I was wondering if anyone else has come across such a scenario. I would certainly appreciate an input. Thank you very much for your help!

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Asked: 2013-04-09 12:53:43 -0500

Seen: 281 times

Last updated: May 28 '13