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(1) A binary PCM signaling uses on-off signaling to transmit symbols 1 and 0 (symbol 1 is represented by a rectangular pulse of amplitude A and duration Tb; symbol 0 is represented by no pulse transmission for period Tb). The additive noise at the receiver input is white and Gaussian with zero mean and PSD of N0/2. Find an expression for the average probability of error with matched filtering assuming symbol 1 and 0 occur with equal probability.
(2) An analog signal was sampled, quantized and encoded into a binary PCM wave. The sampling frequency was 10 kHz and the number of representation levels was 256. The PCM signal streamed over a baseband channel. How many digits are used to represent each sample? What is the bit rate? How long does it take to transmit one sample? What is the minimum required transmission bandwidth?
(3) The combination of the transmitter and channel produces a pulse with its amplitude spectrum defined by G(f)H(f) = e-|f|Tb. Determine the spectrum of the of the ideal receiver filter that would eliminate intersymbol interference. Assume ideal Nyquist channel.
(4) In a single parity-check code, a single parity bit is appended to a block of k message bits (m0, m1, mk-1). This single parity bit, b1, is chosen so that the codeword satisfies the even parity rule: m0 + m1 +.......+ mk-1 + b0 = 0 (mod 2). For k = 3, set up the 2k possible codewords in the code defined by this rule.
1. Describe the advantages of an integrated design approach for the delivery of high performance buildings, including how they can potentially reduce the initial costs of a "green" project.
(a) Calculate the length of the blades of a 1 MW wind turbine. Assume the air density is 1.0 kg/m^3, average wind speed is 15 m/sec, and overall efficiency is 25%. (b) An ideal solar cell is operating at30°C. The reverse saturation curren is0.15 mi..
how can a single pole double throw switch can be used in a dc-dc convertor instead of using a switch mode semi conducter device
Determine the relative probability of finding the electron at the distance (a) 12 A beyond the barrier, and (b) 48 A beyond the barrier, compared to the probability of finding the incident particle at the barriers edge. Plot the wave function for ..
Problem 1: For the following truss, each member has the same EA. All members are pin connected at their joints. (i) Under the loads at C and D, determine the displacement of joint D along the CD direction (20')
A certain internally compensated (dominant pole) op amp has a dc gain of 200,000 and 3 dB bandwidth of 5 Hz. Sketch the Bode plot of the magnitude of the open loop gain to scale.
What maximum current will be drawn from the 5V output of a peripheral device connected to an HCS12 input port. What input resistance does this represent.
A certain appliance has a potential difference of 100volts while getting a current of 1.5 amperes. Calculate the rate at which energy is changing in this appliance.
1- Find the signal power at the input to the receiver amplifier. 2- Find the noise powre spectrum at the input to the receiver amplifier. 3- Find the signal-to-noise ratio at the receiver amplifier output.
A 220V dc series motor runs at 700 rev/min when operating at its full-load current of 20A. The motor resistance is 0.5W and the magnetic circuit may be assumed unsaturated. What will be the speed if: (i) the load torque is increased by 44
Determine the panel orientation you would choose to obtain maximum energy: (a) Over the year (b) In the summer (c) In the winter Discuss your choice of slope angles if the location is at 75°N.
A synchronous motor is rated as 250 hp, 4.8 kV connected 60 Hz 12 poles with Xs=0.6 pu and Rs=0.01 pu. The motor rotational losses are 1.5 kW and the excitation power is 6 kW. The motor is supplied by rated voltage at the stator.
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