Digital Signal Processing a five steps process Step 3-Computation on input data sequence e.g. A simple low pass Filter y(n)=0.25x(n-1)+0.5x(m)+0.25x(n+1) (3)
Step 3 - Computation on input data sequence y(n) = 0.25x(n-1) + 0.5x(n) + 0.25x(n+1) (3) e.g. A simple Low Pass Filter Digital Signal Processing - a five steps process
Digital Signal Processing a five steps process Step 4- Digital to Analog Conversion DAc) y(n)=y(),y(1),y(2),……,y(N2),y-2) y(nTs Figure 8
Step 4 - Digital to Analog Conversion (DAC) y(nTS ) y(n) = [y(0) , y(1) , y(2) , ............ , y(N-2) , y(N-2)] Figure 8 Digital Signal Processing - a five steps process
Digital Signal Processing a five steps process Step 5 interpolation y(nTs) y() Igure
Step 5 Interpolation y(t) y(nTS ) Figure 9 Digital Signal Processing - a five steps process
Digital Signal Processing x() x(n) Digital ye () Filter ADC DAC +Int y(n)=ge(n) Figure 10
x(t) x(n) ADC Digital Filter DAC + Int. y(n) y(t) y(n) = G{x(n)} Figure 10 Digital Signal Processing
Digital Signal Processing key issues 1. Build a mathematical model of the system. 2. Design algorithms and formulations for the model 3. Apply the algorithms to the input data and calcula ite the output data 4. convert the data to the time domain
Digital Signal Processing - key issues 1. Build a mathematical model of the system. 2. Design algorithms and formulations for the model 3. Apply the algorithms to the input data and calculate the output data 4. convert the data to the time domain