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In quantization process, the amount of quantization noise is _______________ to number of levels.
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.
Uniform quantization provides better quantization for
Non uniform quantization provides better quantization for
In non uniform quantization, the quantization noise is _______ to signal size.
Quantization is twice the quantization line spacing.
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
Two processes X and Y need to access a critical section. Consider the following synchronization construct used by both the processes Process ? /* other code for process ? */ while(true) { varP = true; while(varQ == true) { /* Critical Section */ varP = false; } } /* other code for process ?? */   Process ? /* other code for process ? */ while(true) { varQ = true; while(varP == true) { /* Critical Section */ varQ = false; } } /* other code for process ? */   Here, varP and varQ are shared variables and both are initialized to false. Which one of the following statements is true?