A number of causal DT time-domain signals are shown in the graphs List the time-domain signal...

   

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A number of causal DT time-domain signals are shown in the graphs List the time-domain signal that corresponds to each of the following z-transforms. Note: Few or no calculations are necessary, make use of the z-transform tables. Clearly indicate for each z- transform which time-domain sequence it corresponds to and explain your reasoning. A: B: z² -0.9/√2z z²0.9√2z+0.81 C: k=0 D: -2k Z-5 1-z-1 E: 0.75 z (z - 0.75)² 0.25 Z-1 (1-z-¹) (1 0.75 z-¹) Graphs 1.5- 1.0 0.5- 0.0 1.5 1.0- 0.5- 0.0 2- 1 O O 5 10 10 10 1 15 5 15 9 15 1.5 1.00 0.5- 0.0 1- 0- O 1.5 1.0- 0.5- 0 0.0 O 5 10 2 15 6 2 1 O 1 O 1.5 O 0.0 5 10 15 5 10 15 10 11 1.0 ரார் m 0.5 10 15 10 15 O 5 O 10 15 7 2 1 -1 1.5 1.0 0.5 0.0 1.5 1.0 0.5 0.0 0 O 5 O 5 000 000 5 10 10 10 15 8 15 12 15 A number of causal DT time-domain signals are shown in the graphs List the time-domain signal that corresponds to each of the following z-transforms. Note: Few or no calculations are necessary, make use of the z-transform tables. Clearly indicate for each z- transform which time-domain sequence it corresponds to and explain your reasoning. A: B: z² -0.9/√2z z²0.9√2z+0.81 C: k=0 D: -2k Z-5 1-z-1 E: 0.75 z (z - 0.75)² 0.25 Z-1 (1-z-¹) (1 0.75 z-¹) Graphs 1.5- 1.0 0.5- 0.0 1.5 1.0- 0.5- 0.0 2- 1 O O 5 10 10 10 1 15 5 15 9 15 1.5 1.00 0.5- 0.0 1- 0- O 1.5 1.0- 0.5- 0 0.0 O 5 10 2 15 6 2 1 O 1 O 1.5 O 0.0 5 10 15 5 10 15 10 11 1.0 ரார் m 0.5 10 15 10 15 O 5 O 10 15 7 2 1 -1 1.5 1.0 0.5 0.0 1.5 1.0 0.5 0.0 0 O 5 O 5 000 000 5 10 10 10 15 8 15 12 15