13. (TCO 7) The energy per bit to noise power density ratio is given by the rati

Question

13. (TCO 7) The energy per bit to noise power density ratio is given by the ratio _____.
(Points : 5)        signal power/noise power
       noise power/bandwidth
       energy per bit/noise power
       energy per bit/noise power density Question 14.14. (TCO 7) If the noise level is increased in a data signal, the bit error rate (BER) _____.
(Points : 5)        increases
       decreases
       remains the same
       decreases by two times Question 15.15. (TCO 1) If two signals are mixed in the nonlinear operation of a device, the output will contain _____.
(Points : 5)        the sum of input frequencies
       the sum and difference of input frequencies
       the sum and difference and harmonics of input frequencies
       a square wave 13. (TCO 7) The energy per bit to noise power density ratio is given by the ratio _____.
(Points : 5)        signal power/noise power
       noise power/bandwidth
       energy per bit/noise power
       energy per bit/noise power density

Explanation / Answer

Answer 13 is A

Energy per bit to noise power density is very important factor in digital communication it is known as "signal power to noise power " or well known as SNR

SNR = 1.76 + 6.02n

n is number of bit

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