A signal whose energy is concentrated in a frequency band is often referred to as a...

 

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A signal whose energy is concentrated in a frequency band is often referred to as a bandpass signal. There are a variety of techniques for sampling such signals, generally referred to as bandpass-sampling techniques. To examine the possibility of sampling a bandpass signal as a rate less than the total bandwidth, consider the system shown in Figure Q2(b). Assuming that w₁ W2 - W1₁, find the maximum value of T and the values of the constants A, wa, and wo such that x, (t) = x(t). x(t) ... X(jw) Ata. (a) -W₂ -w₁ -Wb p(t) = Σ 8(t-nT) 3118 X Xp (t) p(t) H(jw) A+ (b) 3 W1 H(jw) T Wa W2 wo w 3 (1) x, (t) A signal whose energy is concentrated in a frequency band is often referred to as a bandpass signal. There are a variety of techniques for sampling such signals, generally referred to as bandpass-sampling techniques. To examine the possibility of sampling a bandpass signal as a rate less than the total bandwidth, consider the system shown in Figure Q2(b). Assuming that w₁ W2 - W1₁, find the maximum value of T and the values of the constants A, wa, and wo such that x, (t) = x(t). x(t) ... X(jw) Ata. (a) -W₂ -w₁ -Wb p(t) = Σ 8(t-nT) 3118 X Xp (t) p(t) H(jw) A+ (b) 3 W1 H(jw) T Wa W2 wo w 3 (1) x, (t)