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|Title:||Design and maximum error estimation for small error low pass filters|
|Authors:||United States. Advanced Research Projects Agency.|
Hibler, William D.
Fast Fourier Transform
Low pass filters
Ripple error estimation
|Publisher:||Cold Regions Research and Engineering Laboratory (U.S.)|
Engineer Research and Development Center (U.S.)
|Series/Report no.:||Research report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 304.|
Abstract: By using standard spectral windows small error low pass nonrecursive filters may be designed with transition bandwidths inversely proportional to the number of filter weights. The maximum ripple error outside the transition band for any low pass filter using discrete smoothing by the three most standard spectral windows is estimated. Consequently, the straightforward design equations may be used to calculate low pass digital filter weights with a guaranteed maximum error of less than 0.9% or 0.057o depending on how wide the transition band is made. Filters designed in this way have errors comparable to or smaller than those of filters designed by existing techniques and have the advantage that the maximum error is known before hand.
|Rights:||Approved for public release; distribution is unlimited.|
|Appears in Collections:||CRREL Research Report|
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