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i)The data rate of a QPSK modulated signal is 100 kbps. Assuming rectangular pulse shaping, what is the first-null (main-lobe) bandwidth of the modulated signal?
ii) The data rate of a continuous-phase FSK modulated signal is 100 kbps. What is the minimum frequency separation that can maintain orthogonality between the two tones (sinusoidal carriers)?
A 10m diameter cylindrical tank is emptied by a constant outflow of 1 m3 /min. A two position controller is used to open and close a fill valve with an open flow of 3 m3 /min. For level control the neutral zone is 1m and the setpoint is 10m.
A variant of the binary symmetric communication channel described in class is called a binary erasure channel. The transmitter sends a ‘0' or ‘1,' but at the receiver there are three possibilities: a ‘0' or ‘1' or ‘undecided bit..
A small circular parabolic reflector, often referred to as dish, is now being advertised as a TV antenna for direct broadcast. Assuming the diameter of the antenna is 1 meter, the frequency of operation is 3 GHz, and its aperture efficiency is 68%
What is the energy in joules stored in the capacitor below, The capacitor is shown with 10 volts on each side of it (plus on the left of the capacitor, - on the right), and C = 20 microfarads.
(a) find the value of a and K so that the relative damping ratio of the system is 0.5 and the rise time step response is approximately 1 s. (b) with the values of a and k found in previous question
Describe the performance differences between an AM and FM system. Be sure toinclude parameters suchas: Power efficiency, spectral efficiency,noise immunity,and performance.
There are 5 inductors in series and they are 1H,2H,3H,4H,5H what is the total equivalent inductance. There are 5 capacitors in series and they are 1F,2F,3F,4F,5F. what is the total equivalent capacitance.
Implement the truth table shown below using the minimum number of NAND gates. Use 2-, 3- , and/or 4-input NAND gates as required to minimize gates. Develop a logic circuit, using only NAND gates, to implement a circuit.
suppose we use a 32-bit unsigned fixed-point representation with the binary point to the left of the most-significant bit of the 32-bit number. (We'll have a range of 0 - almost 1.) What is the resolution of this representation
A balanced Wye connected load of 15 + j9 Ω/phase is being fed by a Wye connected source. Each of the three lines feeding the load from the source has 0.5 + j0.3 Ω impedance. The voltage at the load is 440 VLL .
The maximum voltage that James can apply to this capacitor is limited by Vmax = Kd, where K is the breakdown strengh of the dielectric. deriven an expression for the maximum energy that can be stored in this capacitor in terms of K and the volume ..
Discuss how the angle of the incident light affected the solar cell? How could solar cell designs and/or installations be designed to counter this affect?
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