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Problem: Using Matlab, generate a vector x of length 1,000,000 whose components are N (0, 1) random variables (use random command of Matlab). Using Table 7.2 in the textbook, quantize x using an 8-level optimal quantizer and callthe quantized vector x (in you Matlab program call is xhat). Determine the error vector x = x - x (in Matlab, xtilde = x - xhat). Compute the square error distortion and find the probabilities of each of the 8 outputs of the quantizer and compute the entropy of xhat. In your solution, give a lasting of your Matlab program as well as the computed distortion, probabilities for each quantization level, and the entropy of the quantized source. Compare the value of the distortion and the entropy of the quantized source. Compare the value of the distortion and the entropy with the given in Table 7.2.
A 120V source is connected in parallel with four (4) resistors, all of which are in parallel. The resistors have the ratios 1 : 2 : 3 : 6 (for example 4Ω, 8Ω, 12Ω, 24Ω). The source delivers 288W to the parallel combination.
A magnetic flux of 400 microwebers passing through a coil of 1200 turns is reversed in 0.1 sec. Calculate the average value of the e.m.f induced in the coil.
A synchronous binary counter is used to divide a 1 MHz input frequency to 3.90625 kHz. What is the MOD number of the counter and how many flip-flops are required
The manufacturer of commercial jets has a cost index equal to 94.9 per aircraft in 2009. the anticipated cost index for the airplane in 2014 is 106.8. the avaerage compound rate of growth should hold steady for the next 15 years.
A 600kVA, 600 V, 0.9-PF-leading, Y-connected synchronous motor has a synchronous reactance of 1.0 per unit and an armature resistance of 0.1 per unit. At the current time, EA = 1
A three-phase 45 MVA, 345/34.5 kV distribution transformer is used as a step-down transformer. Determine the phase VA, Voltage, Current ratings and turns ratios of the transformer if it is connected as follows (a) Wye -delta
After 10 min the process is stopped, and fresh water is poured into the tank at a rate of 8 gal/min, with the mixture again leaving at the same rate. Find the amount of salt in the tank at the end of an additional 10 min.
b)If the calculator produces three digit random numbers that are uniformly distributed between 0.000 and 0.999, find the variance of the sample mean. c) How large should the sample size be in order to obtain a sample mean whose standard deviation i..
What is the clearance requirement for a 120/240 V, single-phase, three-wire service at the point of attachment to the building Over the driveway Over the main roadway
consider a message signal m(t)= e^(-2t) cos(2000*pi*t) u(t) a) determine the minimum step size E necessary to avoid slope overload b) calculate the minimum avaerage quantazation noise power based on part a
In a series RLC circuit, if we have VR(peak to peak) across resitor and Vin(peak to peak) across source and delta T(difference in phase shift in seconds) at a frequency. How can we find magnitude of transfer function at that frequency
(1) check a diode out with a regular ohm meter (2) Give an example of where a half wave, full wave or bridge rectifier is used. (3) What sizes of transformers are used for power lines
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