Question. 2 IF PCM is applied after performing u-law compression of the rate u = z/2, determine the number of quantization levels L required to satisfy SONR of 43 dB. Also note that the number of levels (L) is required to be an integer order of 2.
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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Question. 2 IF PCM is applied after performing u-law compression of the rate u = z/2, determine the number of quantization levels L required to satisfy SONR of 43 dB. Also note that the number of levels (L) is required to be an integer order of 2.
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