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Non uniform quantization provides better quantization for
In non uniform quantization, the quantization noise is _______ to signal size.
Uniform quantization provides better quantization for
In a PCM system with uniform quantization, increasing the number of bits from 8 to 9 will reduce the quantization noise power by a factor of
A person X from a place A and another person Y from a place B set out at the same time to walk towards each other. The places are separated by a distance of 15 km. X walks with a uniform speed of 1.5 km / hr and Y walks with a uniform speed of 1 km / hr in the first hour, with a uniform speed of 1.25 km / hr in the second hour and with a uniform speed of 1.5 km / hr in the third hour and so on. Which of the following is / are correct? 1. They take 5 hours to meet. 2. They meet midway between A and B. Select the correct answer using the code given below:
It is assumed that quantization error, e(n) is a sequence of random variables where 1. The statistics do not change with time. 2. It is a sequence of uncorrelated random variables. 3. It is uncorrelated with the quantizer input x(n). 4. The probability density function is uniformly distributed over the range of values of quantization error. Which of the above statements are correct?
Which of the following statements are true in the case of Pulse Code Modulation (PCM)? a) If the number of bits per sample is increased from n to n + 1; the S/Nq the ratio would be 6 dB b) The quantization noise depends on the sampling rate c) The main advantage of PCM is that it possesses better performance in the presence of noise d) If the number of quantization levels increases from 4 to 64, the bandwidth increase by a factor of 4
Quantization noise depends upon both sampling rate and number of quantization levels.
In quantization process, the amount of quantization noise is _______________ to number of levels.
Quantization is twice the quantization line spacing.