Recent content by Maria88

Thanks a lot "certainly", I am really appreciated that for you, thanks for nice explanation, actually the general idea of potential field method is clear to me, the problem which I face is in the repulsive potential field function and specially after taking the negative gradient I became a...

Hello all I am learning the artificial potential field method for path planning of mobile robot; artificial potential field method has two components: the first one is attractive force and second one is repulsive force. The repulsive function is defined as : Where Urep is repulsive field...

I have not differentiated (1), I found it in reference book with its derivation (eq. 2) and when I try to derive it the result was not match with eq. 2 . and also with eq. 3

d(q,qgoal) is the Euclidean distance between the mobile robot q and the position of the goal point qgoal I think the problem is in this type of function , how to derive this type ?

Thanks a lot for reply Actually, according to derivation rules and from my poor knowledge in derivation of equations when I derived equation (1) the result was: Fatt (q)=-∇Uatt (q) = - ζ * d(q,qgoal) and this result doesn't match equation (2) when I derived equation (3) the result was ...

Why there is no any answer for my question? Is my question ambiguous and unclear ? I really need help , Please

I am working to use the artificial potential field method for path planning of mobile robot; actually I found in one of references the following description about this method: the artificial potential field method uses a scalar function called the potential function. This function has two...

thanks a lot No, I am not so good in math , I know this is a stupid question, but if you can answer it, I will appreciated that

What is "Negative Gradient" ? and what is "Gradient Descent Method" ? What is the difference and relationship between them ? What is the benefit each of them ?