hello,
If I have two LTI system in G1(s) and G2(s) and I know that for a certain fraction of the time period G1 is active and for the reminaing fraction G2 is active, then is there any method to get the equivalent transfer function ?
Umat.
hello,
I have read in a number of papers that if we have a cantilever beam and are only interested in the movement of the tip when the base is being excited at the frequency of the first eigen mode , then the whole beam can be replaced by a spring mass system. Can anyone tell me of a...
hello,
if I have a sinusoidal signal that has changing amplitude and phase with respect to time, how can I find the amplitude and phase with respect to time?
So given x(t) the probem is to find a(t) and p(t)?
Thanks.
hello,
I have made an FEM simulation of a cantilever beam in Matlab. I have included the damping using damping matrix C= alpha x M + beta x K. Problem is that I want to compare my result with this paper
http://flyingv.ucsd.edu/rvazquez/Journal/nano.pdf (See eq.1)
where the...
hi,
Thanks for the link. I tried some thing similar for the system x1 + x2 = 1. I converted to linear programming problem and then used linprog from matlab. The trick is to to put the L1 norm minimization in the for of two inequalities for each variable.
f=[1 1 0 0 ]';
A=[-1 0 -1 0...
Hi,
Can anyone tell me how to find the minimal L1 norm solution to the problem Ax=b using a linear programming method possibly the simplex search??
Any links where I can find something ??
Khan.