Title :
Digital filter analysis toolbox for MATLAB
Author :
Werter, Michael J.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Abstract :
A MATLAB toolbox has been developed that analyzes digital filter structures. After describing the digital filter structure in a SPICE-like format, the programs of this toolbox can map a digital filter structure into a state-space description, convert a state-space description to a z-domain transfer function, compute the maximum signal magnitude when input is bounded by unity, compute noise power at the filter´s output due to round-off errors, round all multiplier coefficients to B bits relative to the largest nontrivial multiplier, generate a table of magnitude and phase sensitivities as a function of the frequency, and estimate the minimum wordlength required to meet filter specifications
Keywords :
circuit analysis computing; digital filters; multiplying circuits; roundoff errors; sensitivity analysis; state-space methods; transfer functions; MATLAB toolbox; SPICE-like format; digital filter analysis; magnitude sensitivity; maximum signal magnitude; minimum wordlength estimation; multiplier coefficients; noise power; phase sensitivity; round-off errors; state-space description; z-domain transfer function; Digital filters; Frequency estimation; MATLAB; Noise generators; Phase noise; Power filters; Power generation; Roundoff errors; Signal generators; Transfer functions;
Conference_Titel :
Signal Processing and Its Applications, 1999. ISSPA '99. Proceedings of the Fifth International Symposium on
Conference_Location :
Brisbane, Qld.
Print_ISBN :
1-86435-451-8
DOI :
10.1109/ISSPA.1999.815732
