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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.
Build a home security system circuit using this program. The system must include a door sensor,window sensor, smoke detector, water leak sensor, a motion detector.
Design a 4-bit binary incrementer using HALF-ADDERS as building blocks. The circuits implements A+1=S where A and S are 4-bit binary numbrers. The circuit has 4 inputs A3A2A1A0 and 5 outputs : S3S2S1S0 and overflow C4. Draw the circuit diagram wit..
A closed-loop system has a hold circuit and process as shown below. Determine G(z) when T = 1 and Gp(s) = 2 / (s + 2). A sampled-data system such as that presented in the above problem has a sampling period T = 0.05s
Consider an LTI(linear,time-invariant) system with input x(t) and output y(t). Suppose you know(measure) the step response, tha is , for x(t) =u(t), you know that y(t) = 2e^(-0.5t)*u(t). Find the output for the following different inputs
A transconductance amplifier with Ri = 2 kΩ, Gm = 40 mA/V , and Ro = 20kΩ is fed with a voltage source having a source resistance of 2kΩ and is loaded with a 1kΩ resistance. Find the voltage gain realized (from the source internal voltage to the o..
what is the magnitude and direction of the current flowing through the cross section?
b)If the calculator produces three digit random numbers that are uniformly distributed between 0.000 and 0.999, find the variance of the sample mean. c) How large should the sample size be in order to obtain a sample mean whose standard deviation i..
Identify the types of system-building methods used by Dorfman to build its wireless warehouse system.
An LVDT is used in an accelerometer to measure seismic-mass displacement. The LVDT and signal-conditioning output is 0.31mV/mm with +/-2cm maximum core displacement.
What is the bandwidth occupied by this signal, and the noise bandwidth of the receiver for this signal? Find the BER at the receiver output and the average time between errors.
What are the respective advantages and disadvantages of the asynchronous and synchronous communication modes from a reliability perspective?
Determine the Laplace transform of the above signals (use properties of the Laplace transform) including the corresponding region of convergence.
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