Title :
Method for designing recursive digital filters with short wordlength
Author_Institution :
Imperial College of Science & Technology, Department of Electrical Engineering, London, UK
Abstract :
With specified passband ripple, stopband ripple and cutoff frequencies, this method employs Crochiere´s 2-parameter optimisation to equalise the passband and stopband statistical wordlengths before optimising coefficients in a multi-dimensional discrete space. Better design can be obtained by investing more computational time. This method is applicable to any recursive digital filters.
Keywords :
digital filters; Crochiere´s 2-parameter optimisation; design method; recursive digital filters; short wordlength; statistical wordlength equalisation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19790094
