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__________ is defined as the ratio of input signal to noise ratio to the output signal to noise ratio.

__________ is defined as the ratio of input signal to noise ratio to the output signal to noise ratio. Correct Answer Noise figure

Noise figure is defined as the ratio of input signal to noise ratio to the output signal to noise ratio of a system or a receiver. SNRi is the signal to noise ratio measured at the input terminals of the device. SNR0 is the output signal to noise ratio measured at the output terminals of the device.

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In a receiver the input signal is 100 V, while the internal noise at the input is 10 V. With amplification the output signal is 2 V, while the output noise is 0.4 V. The noise figure of receiver is
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Signal Processing mcq question image
Where h(t) is shown in the graph
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Causal: The system is causal.
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