Question

This quantity for a modulated signal differs by a fixed amount for the two streams in I/Q data, which is derived from the narrowband assumption. For 10 points each:
[10h] Name this quantity whose “keying” is plotted on “constellation diagrams” in digital modulation. This quantity names a class of time-invariant vectors that are generalized by analytic signal representations.
ANSWER: phase [accept phasors or phase-shift keying] (The I/Q data of a signal is its decomposition into in-phase and quadrature components.)
[10e] Phasors are representations of functions with this shape, since they encode the amplitude and phase of a signal. Functions with this shape are the usual terms in a Fourier series.
ANSWER: sinusoidal [accept sine or cosine; prompt on periodic]
[10m] In circuit analysis, the ratio of two phasors corresponds to this complex quantity. A generalization of Ohm’s law for inductors and capacitors in AC circuits states that voltage equals current times this quantity.
ANSWER: impedance [prompt on Z]
<CWRU A, Physics>

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Summary

California2025-02-01Y316.67100%67%0%
Florida2025-02-01Y36.6767%0%0%
Lower Mid-Atlantic2025-02-01Y613.3383%17%33%
Midwest2025-02-01Y620.00100%50%50%
North2025-02-01Y310.0067%33%0%
Northeast2025-02-01Y512.0080%40%0%
Pacific Northwest2025-02-01Y210.0050%50%0%
South Central2025-02-01Y220.00100%100%0%
Southeast2025-02-01Y42.500%25%0%
UK2025-02-01Y1019.00100%70%20%
Upper Mid-Atlantic2025-02-01Y815.0088%38%25%
Upstate NY2025-02-01Y33.3333%0%0%

Data

Claremont AUC Berkeley B010010
UCLAClaremont B0101020
UC Berkeley AUCSD0101020
Florida State AValencia A010010
UCF BFlorida B0000
UCF CFlorida A010010
DukeUNC C010010
Liberty AVirginia Tech A010010
William & MaryLiberty B0000
UNC BSouth Carolina10101030
Virginia ALiberty C1010020
UNC DWake Forest010010
Chicago CChicago B0101020
Chicago DMissouri010010
Illinois CIndiana B1010020
Indiana AIllinois B10101030
Missoui S&TIllinois A1010020
WashU BChicago A0101020
Iowa StateCarleton0101020
Winona StateMinnesota B010010
Wisconsin BWisconsin A0000
Tufts ABrandeis A010010
Brandeis BBU0000
Harvard ADartmouth A0101020
Brown AUMass Boston0101020
AlbertaUBC010010
UW BUW A001010
ASUTAMU0101020
Texas ATexas B0101020
Louisville AGeorgia Tech B0000
Georgia Tech CGeorgia Tech D001010
Vanderbilt AGeorgia Tech A0000
Bruin ATennessee A0000
Oxford CBristol0101020
Cambridge ANYU C0101020
Oxford ACambridge B10101030
ManchesterCambridge C0101020
LSECambridge D0101020
Cambridge EImperial A010010
Warwick ADurham10101030
Imperial BWarwick B010010
SheffieldSouthampton A0101020
Oxford BSouthampton B010010
Maryland AColumbia B001010
Haverford ACornell B010010
Vassar AGeorge Washington A010010
Maryland BGeorge Washington B010010
John Jay CollegeHaverford B010010
Harvard BMIT A010010
NYU BJohns Hopkins A010010
Penn APenn B10101030
Rutgers AYale A10101030
Binghamton ACornell C0000
Cornell DRIT A010010
ESF ARIT B0000