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(a) stochastic message signal, m(t), is transmitted down a (noiseless) cable channel by PCM, using an 8-bit code. If the ambient signal is equally likely to lie anywhere between its two extremes, (+/- mp), calculate the ration of the mean squared signal to the mean squared (quantization) noise, in dB terms.
(b) Calculate, in dB terms, the maximum signal-to-noise ratio that would be observed in this system.
(c) If the protective cladding on the transmission cable is removed, channel noise now degrades the signal-to-(total) noise ratio by approximately 4.77 dB(from its value in part (a) for the noiseless channel), then, given that the mean squared channel noise power is 4mp2pe(L2 -1 )/3L2 where the symbols have their usual meaning, Estimate the probable bit error rate now existing in the channel.
(a) If five different types of chips are to be placed on the board, how many different layouts are possible (b) If the five chips that are placed on the board are of the same type, how many different layouts are possible
Using this method, create and test a minority vote circuit, a circuit designed to indicate when one or no inputs are HIGH. Determine the appropriate SOP equations, enter, compile, simulate, download, and test your solution.
If the concentration of free electrons is 10^29 electrons per cubic meter and if they are uniformly dispersed throught the wire, then what is the average velocity of an electron ?
The average noise power per unit bandwidth measured at the front end of an AM receiver is 10^(-3) watt per Hertz. The modulating wave is sinusoidal, with a carrier power of 80 kilowatts, and a sideband power of 10 kilowatts per sideband.
A wave propagates 50m through a dielectric of region 1. Region 1 is lossy. Here, f= 0.6 Np/m. At an interface to region 2, the reflection coefficient is r =0.2+j0.5. The wave then propagates 50m back into region 1 from where it originated.
When the amplifier is operating with a bandwidth first of 10MHz, find? 1) The RMS input noise power level? 2) The audio output power level? 3) The RMS output noise power level?
With V=100V, the instantaneous power into a network N has a maximum value 1500 W and a minimum value ?247 W. (1) Find a possible series RL circuit equivalent to N. (2) Find S=P+jQ into N.
b) Draw the LFSR circuit to generate the CRC. Generate the CRC by applying the data pattern to the LFSR and verify the answer in part a. c) An error vector is given by X7+ X6+ X4+ X3+1. What is the received bit pattern corresponding to part a
Assume you have a receiver with an overall noise figure of 23 dB and a bandwidth of 1 MHz. Assuming the minimum acceptable SNR at the output of the receiver is 6 dB, estimate the minimum detectable signal level in dBm at the receiver input.
Using the table, what is the byte stored at address 2F? Using the table, what is the byte stored at address 33?
What are the distinguishing features of the response in the pass-band? What are the distinguishing features of the response in the stop-band? What is an all pass filter?
The basic column control system shown in Figure is somewhat more complicated than the basic neutralizer control system
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