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Title: | A Least Mean Square Based Method of Lowpass Fir Filter Design Using the MATLAB Toolbox |
Authors: | Kwaha, B.J Gyang, B.N Amalu, P.C |
Issue Date: | May-2011 |
Series/Report no.: | Vol.7;No.2;Pp 143-146 |
Abstract: | A lowpass digital filter was designed using the MATLAB toolbox. The programme code was based on the least
mean square error criterion method and was run in two steps – viz- filter order estimation from given specifications,
and determination of the coefficients of the transfer function using the estimated order and filter specifications. The
amplitude response of the linear phase FIR filter was used to obtain a realizable filter transfer function for filter
length, N = 40. It was observed that for a longer length the FIR filter has a sharper cut off FIR filter and a narrow
transition band. This makes it suitable for processing baseband signals especially digitized voice, music and data
signals. All tests were carried out with the aid of the command window, which was unlocked from the workspace
desktop for easy accessibility. |
URI: | http://hdl.handle.net/123456789/572 |
Appears in Collections: | Physics
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