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Informational characteristics of the quantized signal.

Lecture



Informational characteristics of the quantized signal.

m = 3, n = 2 (00 01 02, 10 11 12, 20 21 22). 9 = 3 2 - different values ​​of the signal.

Reasoning by induction: the total number of implementations of the signal N = m n   . Then the amount of information that can be carried by the signal J (N) = log 2 N = log 2 m n = n * log 2 m.

Thus, the information contained in a quantized level and time is directly proportional to the number of samples and logarithmic from the number of quantization levels. φ ( N ) = n * log 2 m

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Information and Coding Theory

Terms: Information and Coding Theory