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Consider the signal: x(t)=4 sin?(2π80t)+2 sin?(2π130t)+2sin?(2π280)t Sketch the magnitude spectrum of x(t) showing proper values for the amplitudes. If that signal is sampled at 600 samples per second, write the expression x(n) of the sampled signals. Sketch the spectrum of the sampled signal up to 1200 Hz. If the sampled signal of part b) is filtered by a low pass filter with a 300 Hz cut-off frequency, sketch the magnitude spectrum of the filtered signal If that signal is sampled at 400 samples per second, write the new expression x(n) of the sampled signals. Sketch the spectrum of the sampled signal of part e) up to 1000 Hz. If the sampled signal of part e) is filtered by low pass filter with a 300 Hz cut-off frequency, sketch the magnitude spectrum of the filtered signal
The required exposure energy for a positive photoresist is 140 mJ/cm2 and for a negative photoresist is 9 mJ/cm2. Assuming negligible times for loading and unloading wafers, compare the wafer throughput for positive photoresist and negative photor..
An assembly line can produce 90 units per hr. The line hrly cost is $4500 on stright line ( the first 8 hrs). Workers are guaranteed a minimum of 6 hrs. There is a 50% premiun for overtime (time and a half), how ever productivity drops by 5%.
Design a state variable two-pole band-pass filter with a geometric center frequency of 2KHz and a 3dB bandwidth of 20 Hz and the tuning resistances need to be 10Kohms each.
A 10 kW laser beam pointing at the ship is turned on at t=0. What speed the ship will attain in 1 day assuming that the surface of the ship is perfectly reflective and perpendicular tot the beam.
Draw an equivalent circuit representing each of the following power system components, showing all the circuit parameters in each case: (i) Short transmission line (ii) Medium length transmission line (pi and T circuits) (iii) Synchronous generator
A small businessman planes to start a taxi -service and purchased a new car for #36000 with borrowed money at 15% compounded annually , his net income is $12000 per year and the salvage value of the car at the end of 4 years is $5000.
When you get to work one day you see that the station is delivering 6.0 MW of power with a power factor cosf=0.9. What is rms current. How much capacitance you should add in series to bring the power factor to 1.0. How much power the station will b..
An AC induction motor is rated at 900 rpm, 200V, 60HZ 3-phase. If reduce the motor speed by reducing the line frequency to 20HZ, what should be the line voltage
assume QPSK is the modulation method used in a digital communication system.The communication system requires minimum bit error.what is the acceptable bit error assuming additive white gaussian noise.
1- a port device may have multi-byte data input buffers and data output buffers. what are the advantages of these 2- what are the advantages of DAA(Data Access Arrangement) and McBSP ports in DSPs
Whether reading consecutive 20 bits from the same wordline would consume about 20 times more energy than reading 1 bit from this wordline. What is the total storage capacity of this DRAM array
Radio systems sometimes suffer from multipath distortioncaused by 2 (or more) propagation paths between transmitter andreceiver. Suppose a channel output related to the input is: y(t) =K1x(t-t01)+K2(t-t02),where x(t) is the input, y(t) the output, ..
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