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(a) What sources of error can arise if the block length and the sampling frequency are not in an integer relationship to each other?
(b) Cut out from a longer speech signal a short segment, for example, of 0.07s in length and limit the bandwidth of this segment on account of the sampling principle. Analyze the frequency domain of this signal with different sampling rates and block lengths. Discuss the differences in the spectral representations. Which of these clearly show errors? What is behind this?
Three single-phase transformers rated at 15kVA, 480V/120V,60Hz are connected in delta to function as autotransformers on a 600V,3-phase line. The H1,H2,X1,X2 polarity marks appear on the metal housing.
The bolts are of 22-mm diameter and are spaced longitudinally every 120 mm. Knowing that the beam is subjected to a vertical shear of 240 kN, determine the average shearing stress in each bolt.
At the end, the wave totally reflects with a pi phase shift, and the reflected wave now interferes with the incident wave to yield a standing wave pattern over the line length.a) Determine the standing wave pattern for the voltage in the line.
A discrete-time signal x[n] is periodic with period 8. One period of its DFT harmonic function is {X[0],...,X[7]}={3,4+ j5,- 4 - j3,1+ j5,- 4,1- j5,- 4 + j3,4 - j5}. (a) What is the average value of x[n] (b) What is the signal power of x[n]
Suppose that the following sequence of symbols is allowed and must be transmitted: (-2, -1, +1, +2), (0, +1, -1, 0), (-2, -1, +1, +2), (0, +1, -1, 0), . . . . Draw the corresponding waveform in each pair of wires using the clock period, T, of part..
Given a co-axial cable to which Pinner = a and Pouter = b energized +Q, -Q where -+Q is the inner cable charge. a) Find E' for a
Reflect upon the strengths, weaknesses, opportunities and threats associated with a business that you are familiar with (one you work at, one you completed your assignments on, or one you have just acquired knowledge about).
Using VHDL, define a module called "mux 4 to 1" which implements a (4:1) multiplexer. The module should take in 4 data inputs called D3, D2, D1, and D0, and two select inputs called S1 and S0. It should have a single output called Y.
Design a 1024x16 RAM using the 256x8 RAM blocks and neccessary combinational circuit. Note that, 256x8 RAM block has 8 bit data (DATA), 8 bit address (ADRS), chip select (CS), read/write (R/W) inputs and a three-state output bus.
Screenshot of the circuit simulation running and the measurements of the input voltage and voltage on each lead of the DC motor.
Frequency. How does the frequency of the harmonic oscillation change if we (i) double the mass, (ii) take a spring of twice the modulus? First find qualitative answers by physics, then look at formulas.
1. Calculate the frequency for each of the following periods:
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