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Design 4-level, 8-level, 16-level, 32-level, and 64-level uniform PCM schemes for this sequence and plot the resulting SQNR (in decibels).
Design an optimal 8-level quantizer for a Laplacian source and plot the resulting mean-square distortion as a function of A as A changes in the interval [0.1, 5
Design an optimal 8-level quantizer for a Laplacian source and plot the resulting mean-square distortion as a function of ? as ? changes in the interval.
Design Huffman codes for this source and its nth extension (i.e., taking n letters at a time), forn = 2, 3, 4, 5, 6, 7.
Gaussian random variable with mean 0 and variance 400 (er = 20), and the next 480 samples are drawn according to a Gaussian random variable.
[Nonuniform PCM] Generate a sequence of random variables of length 500 according to an JV(O, 1) distribution.
Expand the length of the sequence to 64000 by linearly interpolating and inserting three additional samples between successive samples.
Determine the efficiency of the code by computing the average codeword length and the entropy of the source.
A discrete-memoryless information source is described by the probability vector p = {0.2, 0.3, 0.1, 0.4}.
Write a MATLAB file to compute the probabilities of the Kth extension of this source for a given K.
A continuous information source has a zero-mean, unit-variance Gaussian distribution.
A zero-mean, unit-variance Gaussian source is quantized using a uniform quantizer. The quantizer uniformly quantizes the interval [ -10, 10].
Solve Illustrative Problem below with p = 0.1, 0.3, 0.7, 0.99. Compare the results and comment on the effect of p on the resulting distortion.
[Uniform PCM] Generate a sinusoidal signal with amplitude 1 and w = 1. Using a uniform PCM scheme, quantize.
[Determining the Centroids] Determine the centroids of the quantization regions for a zero-mean, unit-variance Gaussian distribution.
[Uniform Quantizer Distortion] Determine the mean-square error for a uniform quantizer with 12 quantization levels, each of length 1.
[Uniform Quantizer with Levels Set to the Midpoints] Find the distortions when a uniform quantizer is used to quantize a zero-mean, unitvariance.
Plot the generated source output vectors and quantization points and determine the distortions.
Find the first five values of the sequence, the corresponding quantized values, and the corresponding codewords.
Meastirements of the response peak amplitudes of a vibrating single-degree-of-freedom sys-tem are as follows: x1 = 24.86, x2 = 22.98, x3 = 21.49.
Some have suggested that neural networks could be applied to people to indicate how likely they are to develop a disease or even become criminals
Remember a time when you did not have a cell phone? Do you remember the days before texting?
Define the following parameters: rms delay spread, coherence bandwidth, coherence time, Doppler spread. How are they related?
Why are the two basic fading mechanisms that characterize small-scale fading considered to be independent of one another?