Function: rampdown

RAMPDOWN  Falling ramp function
  Usage: outsig=rampdown(siglen);

  RAMPDOWN(siglen) will return a falling ramp function of length
  siglen. The ramp is a sinusoid starting from one and ending at
  zero. The ramp is centered such that the first element is always one and
  the last element is not quite zero, such that the ramp fits with
  following zeros.

  RAMPDOWN(L,wintype) will use another window for ramping. This may be
  any of the window types from FIRWIN. Please see the help on FIRWIN
  for more information. The default is to use a piece of the Hann window.
 

Url: http://ltfat.github.io/doc/sigproc/rampdown.html

See also: rampup, rampsignal, firwin.

Package: ltfat