Title :
Interpolation factor analysis for jointly optimized frequency-response masking filters
Author :
Yu, Jianghong ; Lian, Yong
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore
Abstract :
The introduction of nonlinear optimization techniques to the frequency response masking (FRM) filter has changed the way in which an FRM filter is synthesized. It allows all subfilters in an FRM structure to be optimized at the same time, resulting in further savings in the number of multipliers. We present a set of design equations that help to determine filter lengths and interpolation factor in an FRM filter under a joint optimization approach. It is shown, by means of examples, that the proposed design equations lead to a better estimation of the optimum interpolation factor.
Keywords :
FIR filters; band-pass filters; frequency response; linear phase filters; optimisation; parameter estimation; FIR digital filters; arbitrary passband filters; design equations; frequency-response masking filters; interpolation factor analysis; joint optimization; linear phase filters; nonlinear optimization techniques; Band pass filters; Bandwidth; Design optimization; Digital filters; Equations; Finite impulse response filter; Frequency response; Frequency synthesizers; Interpolation; Passband;
Conference_Titel :
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Print_ISBN :
0-7803-8834-8
DOI :
10.1109/ISCAS.2005.1465012
