Question

Which of the following is the preferred metric when the desired signal bandwidth is less than Nyquist bandwidth?

a.

Noise Power Ratio

b.

Spurious Free Dynamic Range (SFDR)

c.

Full Power Analog Input Bandwidth

d.

Half Power Analog Input Bandwidth

Posted under Cognitive Radio

Answer: (b).Spurious Free Dynamic Range (SFDR) Explanation:Spurious Free Dynamic Range is the preferred metric when the desired signal bandwidth is less than Nyquist bandwidth. First generation cellular base station is an example for this condition. The AMPS signal is much smaller in bandwidth when compared to the spectrum allocation accessed by a cell site ADC.

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Q. Which of the following is the preferred metric when the desired signal bandwidth is less than Nyquist bandwidth?

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