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the block diagram for a convolutional code is given in figure p8101 draw the state transition diagram for this code2 is
a voice-band telephone channel has a pass band characteristic in the frequency range 300 hza select a symbol rate and a
a communication system for a voice-band 3 khz channel is designed for a received snr at the detector of 30 db when the
the transmission of a signal pulse with a raised cosine spectrum through a channel results in the following noise-free
consider the use of a square-root raised cosine signal pulse with a roll-off factor of unity for transmission of binary
a pulse and its raised cosine spectral characteristic are shown in figure p953 this pulse is used for transmitting
in the case of pam with correlated noise the correlation metrics in the viterbi algorithm may be expressed in general
a wire line channel of length 1000 km is used to transmit data by means of binary pam regenerative repeaters are spaced
let xn be a finite-duration signal with length n and let xk be its n-point dft suppose we pad xn with l zeros and
repeat problem 1219 for hard-decision viterbi decodingproblem 1219determine the error probability for an fh spread
the parity polynomials for constructing gold code sequences of length n 7 aregenerate all the gold codes of length 7
in section 122-3 we demonstrated techniques for evaluating the error probability of a coded system with interleaving in
the tats signal described in section 123-3 is demodulated by a parallel bank of eight matched filters octal fsk and
repeat problem 1219 when fast frequency hopping is performed at a hopping rate of l hops per coded bitproblem
consider the following two miso 2 1 systems with awgn the first employs the alamouti code to achieve transmit diversity
consider a material with measured strength values f given in table 12 assume the expected stress values to be one-half
1 name three parameters that must be reported along with experimental data of stiffness and strength of pmc2 do pmc
1 what is the detrimental effect of an incompletely cured thermoset matrix on the life of a pmc2 explain how the matrix
what is the effect of temperature and moisture on the mechanical properties of a polymer use empirical formulas to plot
1 explain polar winding and its limitations2 what are the differences between smc and bmc3 with reference to autoclave
a cylindrical pipe with diameter d 10 m is subject to internal pressure p 50 mp a but it is free to expand along the
identify the fragment in this paragraph by underline the first word of the fragmenthe looks like an escapee from some
this problem was suggested by pf swaszeka for a binary source with probabilities p0 09 pl 01 design a huffman code
a source emits letters from an alphabeta calculate the entropy of this sourceb find a huffman code for this sourcec
use the programs huf fenc and huf fdec to do the following in each case use the codebook generated by the image being