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9 Cards in this Set
- Front
- Back
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What are the two main roles of DSP?
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Analyzing data and processing data
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What are some advantages of DSP over analog filters?
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Programmability
Independent of temperature Accuracy Data Storage Less effort to design |
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x(t) indicate _______ while x(n) indicate _______.
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continuous time, discreet time.
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How does phase relate to frequency and time?
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phase = -wt
w = frequency in rad/sec t = time in seconds |
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What is Euler's Formula?
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e^j(theta) = cos (theta) + jsin (theta)
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Express cos in terms of e
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cos (theta) = 1/2(e^j(theta) + e^-j(theta))
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Express sin in terms of e
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sin (theta) = (e^j(theta) - e^-j(theta))/2j
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Express the following in terms of cos and sin:
cos(theta1 + theta2) |
cos(theta1 + theta2) = cos(theta1)*cos(theta2) - sin(theta1)*sin(theta2)
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True or False. The sum of N cosine signas of different amplitudes and phases, but with the same frequency, can always be reduced to a single cosine signal of the same freq.
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True
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