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Which of the following expressions give the SNR at the output of ADC?(a) SNR=6.02*B+1.76+10log(fs/2fmax)(b) SNR=6.02*B+1.76+10log(2fmax/fs)(c) SNR=12.04*B+1.76+10log(2fmax/fs)(d) SNR=6.02*B+1.76This question was addressed to me in examination.Enquiry is from ADC Tradeoffs in section Technology Tradeoffs in Software Defined Radio of Cognitive Radio |
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Answer» RIGHT choice is (a) SNR=6.02*B+1.76+10log(fs/2fmax) Explanation: SNR=6.02*B+1.76+10log(fs/2fmax) is the expression for SNR at the output of ADC. B is the number of BITS. fs is the SAMPLING frequency. FMAX is the maximum frequency component of the signal. |
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