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Let x[n] be a discrete-time signal whose Ωspectrum you wish to estimate using a windowed DFT. You are required to obtain a frequency resolution of at least π/25 and are also required to use a window length N = 256. A safe estimate of the frequency resolution of a spectral estimate is the main-lobe width of the window used. Which of the windows in Table 7.2 will satisfy the criteria given for frequency resolution?
Initialize the first three and last three rows and columns to "0" - If the value of any element is after the operation then assign the value 0 to it.
A 3-phase, 11 kV, round-rotor synchronous generator delivers power to an infinite bus whose line-to-line voltage is constant at 11 kV rms. The effective stator resistance and synchronous reactance per phase of the synchronous generator are respectiv..
An ignition coil has an inductance of 1.75 henrys and an internal resistance of 6 ohms. It is connected to a 13.5 volt automotive DC source. The switching opening speed of the points is 0.17 milliseconds
Problems: 1. An LTI system whose response to the signal x(t) below is the signal y(t) below. Determine and sketch carefully the response of the system to the inputs xa(t) and xb(t) below using LTI properties.
you run a 50ft extension cord to a load. the resistance of each conductor in the cord is 0.05omega foot. if the
A line charge with linear charge density T is placed parallel to, and a distance R away from, the axis of a conducting cylinder of radius b held at a fixed voltage such that the potential vanishes at infinity.
determine the required value of R1.
Investigate and produce a report on the main different logic families and their requirements - Describe with the use of circuit diagrams the difference between TTL (74 series) and CMOS (4000) integrated circuits.
A new semiconductor has Nc = 1019 /cm3 and Nv=5 x 1018, and Eg = 2eV. If it is doped with 1017 donors (fully ionized), calculate the electron, hole, and intrinsic carrier concentrations at 627K.
A given system has four sensors that can produce an output of 0 or 1.The system operates properly when exactly 1 of the sensors has its output equal to 1.An alarm must be raised when two or more sensors have the output of 1.
Prove that the potential cannot have a minimum in an uncharged region of space. Prove therefore that a point charge cannot be in stable equilibrium under the action of electrostatic forces in an uncharged region.
If 500 kW at 11 kV and 0.9 lagging power factor were supplied at the sending end what would be the voltage, power and power factor at the receiving end?
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