Q3. a) Consider a single tone signal m(t) = 10-cos(2n-750 t) transmitted using pulse code modulation (PCM) of 12 bits: i. Calculate the SNR with 12-bit PCM. ii. If the minimum SNR is to be at least 36 dB, how many number of bits needed to encode the signal ? Other parameters remain the same as in part i.
Quantization and Resolution
Quantization is a methodology of carrying out signal modulation by the process of mapping input values from an infinitely long set of continuous values to a smaller set of finite values. Quantization forms the basic algorithm for lossy compression algorithms and represents a given analog signal into digital signals. In other words, these algorithms form the base of an analog-to-digital converter. Devices that process the algorithm of quantization are known as a quantizer. These devices aid in rounding off (approximation) the errors of an input function called the quantized value.
Probability of Error
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