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Audio and video signals are lossily compressed, but program and text files are not. Try to show the boundary between the two kinds of compression. Why is compression not always loss-free?
the magnetic circuit shown with a mean core length of 52 cm and a cross sectional area of 18 cm2. the length of the
1. Formulate the cost function in terms of autocorrelation values of the time sequence and filter weights 2. Derive Wiener-Hopf equations (in matrix form) 3. Determine the closed form solution for Wiener-Hopf equations (in matrix form)
The T-1 telephone system multiplexes together 24 voice channels. Each voice channel is 4 kHz in bandwidth and is sampled every 1/8000 of a second, or every 125 µs. If the 24 channels are to share the system by time-division multiplexing,
a laser weapon is fired many times at a circular target that is 1m in diameter and it is found that one-tenth of the shots miss the target entirely. for those shots that miss the target completely
A semiconductor, in thermal equilibrium, has a hole concentration of p0 = 2x10^16 cm^-3. The minority carrier life time = 3x10^-7 s. (Assume, ni = 10^10 cm^-3)
A three-phase four wire 480Y /277 volt service is sized to carry 375 amperes per phase. Sketch a metering circuit,including instrument transformers, that provides line-to-neutral voltage, phase current, and kilowatt-hour metering.
The voltage across the load must remain between 4.7 and 5.0 V for all values of load current. Design a voltage-divider network to supply the load. You may assume that resistors of any value desired are available.
If the amplitude of the incident wave voltage at theload is 100V, determine the amplitude of the total voltage at theload, the distance from the load to the first voltage minimum and the amplitude of the voltage at this minimum.
Find the collector current.
A 50 ohmlossless air transmission line is terminated in a load impedance ZL = 12.5 + j20 ohm. Find the following using a Smith Chart: the load admittance YL. the closest distance to the load plane where the normalized admittance on the line is 1 + j..
Find the probability that the applicant from the minority group is selected for a position.
Calculate the total power factor, and indicate whether it is leading or lagging. - Calculate the average power delivered to the circuit.
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