dwt.m
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- % DWT丂 扨堦儗儀儖偺棧嶶1師尦僂僃乕僽儗僢僩曄姺
- % DWT 偼丄巜掕偝傟偨摿掕偺僂僃乕僽儗僢僩('wname',WFILTERS 傪嶲徠)丄傑偨偼丄巜掕
- % 偝傟偨摿掕偺僂僃乕僽儗僢僩僼傿儖僞(Lo_D 偲 Hi_D)偺偄偢傟偐偵懳墳偡傞扨堦儗儀儖
- % 偱偺1師尦僂僃乕僽儗僢僩暘夝傪弌椡偟傑偡丅
- %
- % [CA,CD] = DWT(X,'wname') 偼丄儀僋僩儖 X 偺僂僃乕僽儗僢僩暘夝偱摼傜傟偨 Appro-
- % ximation 學悢儀僋僩儖 CA 偲 Detail 學悢儀僋僩儖 CD 傪寁嶼偟傑偡丅'wname' 偼丄
- % 僂僃乕僽儗僢僩柤傪娷傓暥帤楍偱偡丅
- %
- % [CA,CD] = DWT(X,Lo_D,Hi_D) 偼丄擖椡偲偟偰丄偮偓偺僼傿儖僞傪梌偊丄忋弎偺僂僃乕
- % 僽儗僢僩暘夝傪寁嶼偟傑偡丅
- % Lo_D 偼丄暘夝儘乕僷僗僼傿儖僞偱偡丅
- % Hi_D 偼丄暘夝僴僀僷僗僼傿儖僞偱偡丅
- % Lo_D 偲 Hi_D 偼丄摨偠挿偝偱側偗傟偽側傝傑偣傫丅
- %
- % LX = length(X) 偲 LF 偑僼傿儖僞挿偱偁傞応崌偼丄length(CA) = length(CD) = LA 偵
- % 側傝傑偡丅偙偙偱丄DWT 偺奼挘儌乕僪偑廃婜揑側儌乕僪偱偁傞応崌丄LA = CEIL(LX/2)
- % 偱偡丅懠偺奼挘儌乕僪偱偼 丄LA = FLOOR((LX+LF-1)/2) 偵側傝傑偡丅堎側傞怣崋奼挘
- % 儌乕僪偵偮偄偰偼丄DWTMODE 傪嶲徠偟偰偔偩偝偄丅
- %
- % [CA,CD] = DWT(X,'wname','mode',mode) 傑偨偼
- % [CA,CD] = DWT(X,Lo_D,Hi_D,'mode',mode) 偼丄巜掕壜擻側奼挘儌乕僪偱丄僂僃乕僽儗
- % 僢僩偺暘夝傪寁嶼偟傑偡丅
- %
- % 嶲峫丗 DWTMODE, IDWT, WAVEDEC, WAVEINFO
- % Copyright 1995-2002 The MathWorks, Inc.