Title : 
Calculation of derivatives for parameter estimation
         
        
        
            Author_Institution : 
Imperial College, Department of Computing & Control, London, UK
         
        
        
        
        
        
        
            Abstract : 
The letter presents a simple method for the computation of the approximate Hessian ¿{¿¿k(¿¿)/¿¿}{¿¿k(¿¿)/¿¿}T of a cost function of the form ¿¿¿k2(¿), where ¿ is an m-dimensional vector of parameters. The method has application to parameter-estimation problems.
         
        
            Keywords : 
differentiation; estimation theory; approximate Hessian; calculation of derivatives; cost function; differentiation; parameter estimation;
         
        
        
            Journal_Title : 
Electronics Letters
         
        
        
        
        
            DOI : 
10.1049/el:19710286