SIGNALS DESCRIPTION To analyze signals, we must know how to describe or represent them in the first place. A time signal x() 5 0 10 5 20 0—1234 10 10 5 Detail but not informativeSIGNALS DESCRIPTION To analyze signals, we must know how to describe or represent them in the first place. A time signal -15 -10 -5 0 5 10 15 0 5 10 15 20 t x(t) t x(t) 0 0 1 5 2 8 3 10 4 8 5 5 Detail but not informative