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A signal x(t) is sampled 4 times and the samples are {x[0], x[1], x[2], x[3]}. Its DFT harmonic function is {X[0], X[1], X[2], X[3]}. X[3] can be written as X[3] = a x[0] + b x[1] + c x[2] + d x[3]. What are the values of a,b,c and d?
Two transmitters send messages through bursts of radio signals to an antenna. During each time slot each transmitter sends a message with probability 1/2. Simultaneous trans- missions result in loss of the messages.
Suppose a DC power source with a voltage of 50 volts is connected to a 10-ohm load. How much power will this load dissipate. Now suppose the same 10 ? load is connected to a sinusoidal AC power source with a peak voltage of 50 volts.
A voltage source v(t)=t*sin(t) is connected to a capacitor with C= 2 farad. Find the energy stored in the capacitor from t=0 to t=1 second.
The steady-state electron distribution in silicon can be approximated by a linear function of x. The maximum electron concentration occurs at x = 0 and is n(0) = 2.0 x 1016cm-3. At x = 0.012cm, the electron concentration is 5.0 x 1015cm-3.
A function must be defined or declared above the locations in the source code file from where it is called. We declare a function by writing a function declaration (which is a statement so it ends with a semicolon).
First draw the transmit con-stellation and the receive constellation with ideal phase tracking and sampling. Note:they are obviously the same constellations. Now, assume that receiver synchronization is off by a phase angle.
As speed increases, the lower lamp, L1 lights, then L1 and L2, then, L1, L2, and L3, until all lamps light at the highest speed. Once all the lamps illuminate, no further increase in speed will have any effect on the display.
A square wave signal with voltage levels 0 volts and 2.0 volt at a frequency of 1.00 MHz is multiplied by a sine wave at a frequency of 5.0 MHz
Once a week a wagon driver leaves his hut and drives his wagon to the river dock to pick up supplies for his town. At 4:05 PM, one-fifth of the way to the dock, he passes the Temple. At 4:15 PM, one-third of the way, he passes the Preetam-Da-Dhaba..
A GaAs device is doped with a donor concentration of 3e^15/cm^3 . For the device to operate properly, the intrinsic carrier concentration must remain less than 5% of the total electron concentration
The counter should increment on the rising edge of an input signal we'll call COUNT. Another input called CLEAR should have the effect of setting the counter to zero if CLEAR = 1 when COUNT is asserted.
The toggle switch has been closed for two minutes. During the first 15 seconds after the closing of the toggle switch, pushbutton I2 was pressed four times. Describe what the status of the motor and the pilot light (PL) will be at the two minute m..
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