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(a) Define and distinguish between binary phase shift keying BPSK and Quadriphase shift keying (QPSK) as means of digital modulation of a carrier. [20%](b) A digital signalling system sends data at 10 bit/sec on a radio carrier. For both BPSK and QPSK sketch the power spectra, indicating all important features in the two different cases:(i) natural or unfiltered transmission(ii) maximally filtered according to the Nyquist signalling criterion. [30%](c) Explain clearly why the output signal to noise for a given carrier power and same bit rate in presence of additive white noise may be exactly the same for QPSK and BPSK. [20%](d) A Low Earth Orbiting (LEO) micro-satellite using either BPSK or QPSK modulation on its down link. The power available to receiver on the ground is P = 15 × 10-16 W in presence of white noise of density kT = 4 × 10-21 W/Hz. Noise factor in the receiver is 6 dB. Data rate is fb = 4800 bits/sec Determine:(i) the Eb/N0 ratio(ii) output signal to noise ratio γ2(iii) estimate the (BER) from the approximate formula
Based on the work of March & Simon's Administrative Model, the first step in the managerial decision-making process is to:
What is response-based model of stress
compare two steps that wuld be most effective in refining solutions to the problem and resolutions to the issues presented by your topic
How important is it for a leader to have an enemy to use to create that correct sense of fear to help rally his forces and how important is to have this sort of "scapegoat"?
The criteria used to evaluate the generalisability of quantitative research studies are validity and reliability
Why did he choose to pattern his epic after Homer’s Iliad and Odyssey and how does Virgil’s context help to cl"Why did he choose to pattern his epic after Homer’s Iliad and Odyssey and how does Virgil’s context help to clarify how Augustus ushered in..
A process has a learning curve with a learning rate of 80%. If the first unit requires 10 hours to assemble, how many hours would you expect assembly of the eighth unit to require?
Alpha Cable Company, a subcontractor, understates its bid on a project for Beta Communications, Inc., the general contractor, due to an addition error. Alpha can most likely..
Do you think that cultures will ultimately merge altogether, or that they will become more separate from each other?
Please write a brief educational goal statement AND a brief professional career goal statement. Please be concise and describe how this scholarship will help you achieve your educational and professional goals.
Please provide an example of one standardized and one non-standardized assessment instrument (be specific with your examples, including what makes each assessment standardized or non-standardized).
Though, for something to be so original and imaginative, pristine from any form of imitation, it would be fully rare --so atypical that it would not be as helpful a construct in defining intelligence as imitation.
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