Parameter identi ) cation with weightless regularization †

Although the regularization increased the popularity of parameter identi)cation due to its capability of deriving a stable solution, the signi)cant problem is that the solution depends upon the regularization parameters chosen. This paper presents a technique for deriving solutions without the use of the parameters and, further, an optimization method, which can work e=ciently for problems of concern. Numerical examples show that the technique can e=ciently search for appropriate solutions. Copyright ? 2001 John Wiley & Sons, Ltd.