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A band pass signal has a center frequency of 15 MHz and a bandwidth of 750 kHz (375 kHz each side of the carrier).
(a) Using the band pass sampling theorem determine the minimum sampling frequency at which the band pass signal can be sampled and reconstructed without error.
(b) By drawing the spectrum of the sampled signal and defining all frequencies of interest, show that the signal can be reconstructed without error if the sampling frequency found in (a) is used.
(c) Starting with the sampling frequency found in (a) consider the effect of increasing the sampling frequency. By how much can the sampling frequency be increased without incurring aliasing errors?
Multiaxis machines offer several improvements over other CNC tools at the cost of increased complexity and price of the machine
Find the Thevenin equivalent circuit when you view the system from Bus i and Bus j. Assume that at normal operating condition the voltage phasors of Bus i and Bus j are given: V-i and V-j. Also assume the system's Ybus matrix is known
Describe the filter that yields an AM signal for g (t). Give the necessary filter type and the frequencies of interest.
A load is consisting of induction motors is drawing 80 kW from a 220-V, 60-Hz power line at a power factor of 0.72 lagging. Find the capacitance of a capacitor required to raise the pf to 0.92.
Define characteristic impedance of a two-port network. Show that the characteristic impedance (zo) of a given symmetrical two-port network can be expressed in terms of its impedance (z) parameters by the relation z0 = sqrt(z11^2-z22^2)
What is the impact of EMI on fiber optic cables?
Consider a VLSI chip with 100,000 gates and 2000 flip flops. A combinational ATPG program produces 500 vectors to fully test the logic. Find the minimum number of scan test cycles if 20 scan chains are implemented.
Calculate the probability that the system will fail in 3,000 hours. Supposing no failure of any component occurs in 5,000 hours of operation. What would be your revised estimate of failure rates of the components in your system?
A positive charge of magnitude q1 lies at the origin. Derive an expression for the incremental work done in moving a second point charge q2 through a distance dx from the starting position (x, y, z) in the direction -ax.
[Hint: As you should explain, this is equivalent to showing that the sum of two forward light-like vectors is forward time-like, unless the spatial parts are parallel.]
The surface of the stationary plate is insulated while that of the moving plate is maintained at constant temperature T. Determine the steady state temperature distribution in the two plates.
What are the filter gains for the stopband at the cut-off frequency and 500 Hz, and passband at 3000 Hz based on the plot of the magnitude frequency response. Print the highpass IIR filter coefficients and plot the frequency responses using MATLAB..
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