rice-大学小波分析包-daubcqf.docVIP

function[h_0,h_1]=daubcqf(N,TYPE)

%[h_0,h_1]=daubcqf(N,TYPE);

%

%FunctioncomputestheDaubechiesscalingandwaveletfilters

%(normalizedtosqrt(2)).

%

%Input:

%N:Lengthoffilter(mustbeeven)

%TYPE:Optionalparameterthatdistinguishestheminimumphase,

%maximumphaseandmid-phasesolutions(min,max,or

%mid).Ifnoargumentisspecified,theminimumphase

%solutionisused.

%

%Output:

%h_0:MinimalphaseDaubechiesscalingfilter

%h_1:MinimalphaseDaubechieswaveletfilter

%

%Example:

%N=4;

%TYPE=min;

%[h_0,h_1]=daubcqf(N,TYPE)

%h_0=0.48300.83650.2241-0.1294

%h_1=0.12940.2241-0.83650.4830

%

%Reference:OrthonormalBasesofCompactlySupportedWavelets,

%CPAM,Oct.89

%

%FileName:daubcqf.m

%LastModificationDate:01/02/96 15:12:57

%CurrentVersion:daubcqf.m 2.4

%FileCreationDate:10/10/88

%Author:RameshGopinathramesh@dsp.rice.edu

%

%Copyright(c)2000RICE

%CreatedbyRameshGopinath,DepartmentofECE,Rice

%

%Thissoftwareisdistributedandlicensedtoyouonanon-exclusive

%basis,free-of-charge.Redistributionanduseinsourceandbinaryforms,

%withorwithoutmodification,arepermittedprovidedthatthefollowing

%conditionsaremet:

%

%1.Redistributionofsourcecodemustretaintheabovecopyrightnotice,

%thislistofconditionsandthefollowingdisclaimer.

%2.Redistributioninbinaryformmustreproducetheabovecopyrightnotice,

%thislistofconditionsandthefollowingdisclaimerinthe

%documentationand/orothermaterialsprovidedwiththedistribution.

%3.Alladvertisingmaterialsmentioningfeaturesoruseofthissoftware

%mustdisplaythefollowingacknowledgment:Thisproductincludes

%softwaredevelopedbyRiceUniversity,Houston,

%4.NeitherthenameoftheUniversitynorthenamesofitscontributors

%ma