Jun 28, 2011 #1 L liusupeng Advanced Member level 4 Joined Jun 7, 2009 Messages 101 Helped 5 Reputation 10 Reaction score 4 Trophy points 1,298 Activity points 1,898 when ideal multiplier is used as mixer, can i say it is still linear but not time invariant? Thanks in advance
when ideal multiplier is used as mixer, can i say it is still linear but not time invariant? Thanks in advance
Jun 30, 2011 #2 P philcorb Junior Member level 3 Joined Jun 30, 2011 Messages 25 Helped 2 Reputation 4 Reaction score 1 Trophy points 1,283 Location Trondheim, Norway Activity points 1,451 The conversion gain is constant, independent of input amplitude => linear the equation f(t) = f(t+t') for any t' is not true => not time invariant I would agree!
The conversion gain is constant, independent of input amplitude => linear the equation f(t) = f(t+t') for any t' is not true => not time invariant I would agree!