Simplex (transorthogonal) signals are equally likely highly-corr Simplex (transorthogonal) signals are equally likely highly-correlated signals with the most negative correlation that can be achieved with a set of M orthogonal signals. That is, the correlation coefficient between any pair of signals in the set is defined by below, one method of constructing simplex signals is […]
In the noise analyzer of Figure a, the low-pass filters In the noise analyzer of Figure a, the low-pass filters are ideal with a bandwidth equal to one-half that of the narrowband noise n (t) applied to the input. Using this scheme, derive the following result: (a) Equation (1.101), defining the power spectral densities of […]
A fast FH/MFSK system has the following parameters: Number of A fast FH/MFSK system has the following parameters: Number of bits per MFSK symbol = 4 Number of MFSK symbols per hop = 5. Calculate the processing gain of the system.
In the Manchester code, binary symbol 1is represented by the In the Manchester code, binary symbol 1is represented by the doublet pulse s (t) shown in Figure P5.13, and binary symbol 0 is represented by the negative of this pulse. Derive the formula for the probability of error incurred by the maximum likelihood detection procedure […]
In the DPCM system depicted in Figure, show that in In the DPCM system depicted in Figure, show that in the absence of channel noise, the transmitting and receiving prediction filters operate on slightly different inputsignals.
In Section 6.10 we compared the noise performances of coherent In Section 6.10 we compared the noise performances of coherent binary PSK, coherent binary FSK, QPSK, MSK, DPSK, and non-coherent FSK by using the bit error rare as the basis of comparison. In this problem we take a different viewpoint and use the average probability […]
In section 7.5, we presented an analysis on the signal-space In section 7.5, we presented an analysis on the signal-space dimensionality and processing gain of a direct sequence spread-spectrum system using binary phase-shift keying. Extent the analysis presented therein to the case of such a system using Quadriphase-shift keying.
In the Bayes test, applied to a binary hypothesis testingIn the Bayes test, applied to a binary hypothesis testing problem where we have to choose one of two possible hypotheses H0 and H1, we minimize the risk R defined by R = C00 p0 P (say H0 | H0 is true) + C10 p0 P […]
13. Harwichport Company has a current ratio of 3.0 and an acid-test ratio of 2.8. C 13. Harwichport Company has a current ratio of 3.0 and an acid-test ratio of 2.8. Current assets equal $210,000, of which $5,000 consists of prepaid expenses. The remainder of current assets consists of cash, accounts receivable, marketable securities, and […]
In Section 6.8 we derived the formula for the bit In Section 6.8 we derived the formula for the bit error rate of non-coherent binary FSK as a special case of non-coherent orthogonal modulation. In this problem we revisit this issue. As before, we assume that binary symbol 1 represented by signal S1 (t) is […]