Name

wavedec — Multiple Level Discrete Fast Wavelet Transform

Calling Sequence

[C,L]=wavedec(x,N,wname)
[C,L]=wavedec(x,N,Lo_D,Hi_D)

Parameters

wname
: wavelet name
x
: double vector
N
: decompostion level
Lo_D
: lowpass analysis filter
Hi_D
: highpass analysis filter
C
: coefficent array
L
: length array

Description

wavedec is for multiple-level discrete fast wavelet transform. Extension is stored as a global variable and could be changed by dwtmode;

Examples

  x=rand(1,100);
  [C,L]=wavedec(x,3,'db2');
 

Authors

Roger Liu and Isaac Zhi

See Also

waverec