Using SVD in Estimation problem


vijaypshah
08-22-2009, 11:56 AM
Hi,

I am using SVD to solve the linear system Ax = b. I have a condition that estimated values x should always be positive. Is there a way to make sure that estimated values of x are alway positive?
What is the better solution to this problem? I can use Non-linear Least square approach but then it has the problem of being stuck in local minimum based on the start value and the speed.

Regards,
Vijay