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Find the autocorrelation function in terms of the model coefficients .
Suppose there was an error in the channel and the first bit was received as a 0 instead of a 1. Decode the received sequence of bits.
For a binary source with probabilities P(0) = 0.9, P(l) = 0.1, design a Huffman code for the source obtained by blocking m bits together.
Encode the following sequence of 16 values using the Rice code with 7 = 8 and one split sample option.
Write a program for encoding images using the Rice algorithm. Use eight options, including the fundamental sequence, five split sample options.
Given a number a in the interval [0, 1) with an n-h ii binary representation.
The binary arithmetic coding approach specified in the JBIG standard can be used for coding gray-scale images via bit plane encoding.
Bit plane encoding is more effective when the pixels are encoded using a Gray code.
We will encode the sequence 1 3 2 1 with parameters shown in Table .
What is the word length required for unambiguous encoding?
Plot the difference of the rate in bits/symbol and the entropy as a function of L. Comment on the effect of L on the rate.
Discuss the trade-offs involved in selecting larger or smaller values of M.
Design and implement a digram coder for text files of interest to you.
Given an initial dictionary consisting of the letters a b r y b, encode the message using the LZW algorithm.
A sequence is encoded using the LZW algorithm and the initial dictionary shown in Table.
Assume you have a window size of 30 with a look-ahead buffer of size 15. Furthermore, assume that C{a) = 1, C{b) = 2, C{b) = 3, C{r) = 4, and C{y) = 5.
Encode the decoded sequence and make sure you get the same sequence of triples.
Write a program to compute the first-order entropy of some of the image and speech files.
Write a program that randomly selects letters from the 26-letter alphabet [a,b,..., z} and forms four-letter words.
Write a program to take the difference between adjoining pixels, and then use huf f man to code the difference images.
Determine the decision variables for the separate ML decoding of the symbols in rate 3/4 block code.
Prove that, during a first-order phase transition-The entropy of the entire system is a linear function of the total volume.
Using Stirling's approximation and the method of Lagrangian multipliers, render In OBE a maximum,subject to the equations of constraint ?Ni = N = const.
In the region of moderate pressures, the equation of state of 1mol of gas may be written Pv = RT + B’P + C’P2 .
Perform a search on the Web for articles and stories about social engineering attacks or reverse social engineering attacks.