The filter coefficients of a second-order digital IIR filter are: a0 = 1, a1 = -2, a2 = 2, b0 = 1, b1 = 1/2, b2 = 1/8. (a's are numerator coefficents and b's are the denominator coefficients). Compute the magnitude response |H(ej?)| where ? = 2.721 rad/sec.

Hey can someone explain the transfer function of a oscilliscope, mainly at the point of the RC circuit and the variable input that tunes the oscilliscope for the square wave. that determines the compensation in the oscilliscope.

c)    A 3-phase load draws an apparent power of 80kVA from a 415V 3-phase supply. The power factor of the load is 0.85. Determine the real power supplied to the load and the rms line current?

D) Explain the importance of energy storage for grids that have large amounts of wind power. Name one type of storage system used within a large electricity grid.

E) Explain why AC loads are often rated in terms of their apparent power (VA), rather than their real power (Watts), even though the real power is the only quantity which indicates the actual work done at the load.

Write a VHDL code to use two ultrasonic sensors as detectors, placed one at entrance and other at exit of a parking space. When the ultrasonic detects a car, use a counter to count the cars entering and decrement when a car exits. There is an RGB led place at each gate (entry &exit) which is used to indicate opening and closing of gates. Entry gate LED turns green when car detected and space available. LED stays red when no car detected, or car detected but no space available. Exit LED stays red but turns green when car detected by ultrasonic.

Suppose a 3 ×3 MIMO system (three transmitters) achieves a similar performance as a 4 ×2 MIMO system (four transmitters), which system would you choose?

How can the Hamming error correcting code be improved? what are the improvements and implications?

3. Use matlab to plot the output voltage of an inverting operational amplifier given the following conditions: K = Gain of the amplifier = 12.5. Vi = input voltage -2.5 < Vi < 2.5 V], (use 0.25 increments). V+ = positive power supply voltage, V+ = +20 V. V- = negative power supply voltage V- = -20V. Vo = output voltage Vo = -KVi Recall that if the output voltage Vo is greater than V+, or less than V-, the output voltage Vo gets clipped to the V+, or V- voltage, (clipped at the rail voltage).

I have a project where i have to include solar cells and piezoelectric transducers in an umbrella.

They will be used to transform solar energy and energy from rain respectively into electrical energy. (stored in a lithium battery)

I would like to know how i should build up the circuit. As in:

1. should i connect the solar cells in series?

2. How do i connect the piezoelectric transducers? what type of rectifying diode i need for this experiement.

3. What calculations i can use to show that the energy harvested by the piezoelectric transducers will be very little?

4. What calculations i can then use to show that to have more energy i make use of solar cells?

Write code using the Arduino IDE that compiles with no errors.

2-bit adder: The code must read two digital input signals and turn on two LEDS as needed to show the sum of the inputs. e.g. 0 + 1 = 01.

Design a circuit and write a verilog code description of the 16-bit right rotator using barrel shift method

please Use Matlab to plot simulated results and to plot and conduct the mathematical analysis of the data below:

note: I only need these things

1- simulate the RC filter in the frequency domain in order to obtain magnitude and phase response plots.

2-obtain the transient response plots of the capacitor voltage and the current as functions of time.

Channel 2 Data
Time Scale: 0.002 seconds/div
Voltage Scale: 2.0 volts/div
Waveform Data: 500 points

Time Voltage
---------------------
-0.01 2.68675
-0.00996 -2.62425
-0.00992 -2.74925
-0.00988 -2.62425
-0.00984 -2.62425
-0.0098 -2.68675
-0.00976 -2.62425
-0.00972 -2.68675
-0.00968 -2.62425
-0.00964 -2.74925
-0.0096 -2.62425
-0.009559999999999999 -2.74925
-0.009519999999999999 -2.68675
-0.009479999999999999 -2.68675
-0.009439999999999999 -2.68675
-0.009399999999999999 -2.68675
-0.009359999999999999 -2.62425
-0.009319999999999998 -2.68675
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-0.009199999999999998 -2.68675
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-0.009119999999999998 -2.62425
-0.009079999999999998 -2.68675
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-0.008999999999999998 -2.62425
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-0.008879999999999997 -2.68675
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-0.008759999999999997 -2.68675
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-0.007119999999999993 0.50075
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-0.0070399999999999924 0.75075
-0.006999999999999992 0.87575
-0.006959999999999992 1.00075
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-0.006719999999999992 1.50075
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-0.006639999999999991 1.62575
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-0.006559999999999991 1.81325
-0.006519999999999991 1.87575
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-0.006359999999999991 2.00075
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6.800000000000234E-4 -2.68675
7.200000000000234E-4 -2.74925
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