Question

Task 1 (45 Marks) The concepts of signals and systems arise in a wide variety of fields, and the ideas and techniques associated with these concepts play an important role in such diverse areas of science and technology as communications, aeronautics and astronautics, circuit design, acoustics, seismology, biomedical engineering, energy generation and distribution systems, chemical process control, and speech processing. In the principle of signal and system answer the following questions: 1. Given the signal x(t) shown in figure 1 apply the concept of signal operations to Sketch (15 Marks) the following signals: i. y(t) = x(0.5 t) ii. y) = x(t + 2) y(t) = x(t-2) iv. y(t) = x(2t) y(t) = x(-t) V. MEC_AMO_TEM_034_01 Page 1 of 7 Communication System (ELEC 10005) - Spring - 20-CW1 (Assignment1) - All - QP 2 Figure 1

Answer 1

Hey there! Hope the solution is clear. Thank you and all he very best :)
1 The shown signal xef is below X(+) t >t To get ylle x10.54), X1H) is time sealed by on factor of 0.5, and looks like a (6.51) H. 4 To get y(t)e x(+2) x (H) is time shifted to the left by 2 units. act+2) CS Scanned with CamScanner

1) to get y(t) , x(1-2), a(d) is time shifted to the right by 2 units x 1-2) 2 iv) To get yet). x 12+) (+) is seculed in time axis by a factor of 2 X (26) o 1 to get yet) 2 x(-+) time reversal is applied ! X(t) is reversed / reflected about y anis. p. 22(-+) CSScanned with CamScanner