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(a) Why is convolution such an important signalling process? Why does it make filtering in the time domain possible?
(b) How can the digital filtering of a longer lasting signal be described graphically by convolution (see Illustration 212)?
Suppose that we define the value of the complex constant A as A = -2 + 2j. Write the constant A in magnitude-angle form, that is, find |A| and A such that A = |A|ej A Sketch the real part of the function z(t), where z(t) = Aej(500pit+pi/2).
Focus on a single cell first and assume a background noise power of N0. Is the system interference-limited under the SIC receiver? Was it interference-limited under the conventional CDMA receiver?
Design an Aritmentic unit that meets the following specifications. Two 32-bit operands as inputs 2-bit command as input to specify four operations ADD, SUB, MUL, DIV
ohn explains to jasmine after the battery in his calculator died that a 9 volt battery can be used to charge a 1.5
Suppose that we wished to match an admittance using a double-stub tuner where the stubs are lambda/4 apart. For what range of admittance values can
battery have a lifetime of 10 years, and is rated at 20 Ah (Ampere-hour) at 3.6V. Find the average power that the node can consume. Assume 100% battery and power delivery efficiency.
A star-bus hybrid topology consists of a main three branch star toplogy with each branch connecting three stations in a bus topology. This toplogy is changed to a new bus-ring hybrid topology with main five station bus topology.
A perfectelectric dipole is directed along the z-axis. In conventional spherical polar coordinates, at what values of the"dangle angle" q does the electric field have no z-component
A 50-O lossless line is terminated in a load impedance of 50 + j 100 O. If the wavelength is 20 cm, determine (a) the complex reflection coefficient at the load, (b) the standing-wave ratio,
Silicon, originally intrinsic, is doped with 4*10^16 /cm^3 of arsenic atoms at room temperature. a) What proportion of the silicon atoms have been replaced by arsenic atoms b) What is the thermally generated density of electrons and holes
Design a proportional controller such that the steady state error due to ramp input and sketch the root locus and find the range of values of K guaranteeing stability and obtain using a reasonable approximation the step response of the closed loop sy..
A circuit element is hidden inside a potato sack and draws a current which varies with time t, measured in seconds, i(t) = 0.04 e(-4400 · t) Amps, while the voltage drop across this element is given by the function v(t) = 6.061 (1 - e(-4400 · t)) ..
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