ffilt(1)

NAME
ffilt - coefficients of FIR low-pass

CALLING SEQUENCE
[x]=ffilt(ft,n,fl,fh)

PARAMETERS

ft  : filter type where ft can take the values

    "lp"
        : for low-pass filter

    "hp"
        : for high-pass filter

    "bp"
        : for band-pass filter

    "sb"
        : for stop-band filter

n   : integer (number of filter samples desired)

fl  : real (low frequency cut-off)

fh  : real (high frequency cut-off)

x   : vector of filter coefficients

DESCRIPTION
Get n coefficients of a FIR low-pass, high-pass, band-pass, or stop-band filter. For low and high-pass filters one cut-off frequency must be specified whose value is given in fl. For band-pass and stop-band filters two cut-off frequencies must be specified for which the lower value is in fl and the higher value is in fh

AUTHOR
C. B.