qmf {waveslim} | R Documentation |
Computes the quadrature mirror filter from a given filter.
qmf(g, low2high=TRUE)
g |
Filter coefficients. |
low2high |
Logical, default is TRUE which means a low-pass
filter is input and a high-pass filter is output. Setting
low2high=F performs the inverse. |
None.
Quadrature mirror filter.
B. Whitcher
Any basic signal processing text.
## Haar wavelet filter g <- wave.filter("haar")$lpf qmf(g)