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The two inputs to an analogue multiplier are x(t) and y(t) with Fourier transforms X(f) and Y(f) respectively. The output z(t) will have a transform Z(t) given by—
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- X(f) .Y(f)
- X(f) + Y(f)
- X(f)/Y(f)
- ∫ta X(λ) Y(t – λ)dλ
Correct Option: D
z(t) = ∫tα x(λ) Y(t – λ)dλ
i.e., convolution of the two input signal x(t) and y(t).
