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  2. IQ imbalance - Wikipedia

    en.wikipedia.org/wiki/IQ_imbalance

    IQ imbalance is a performance-limiting issue in the design of a class of radio receivers known as direct conversion receivers. [a] These translate the received radio frequency (RF, or pass-band) signal directly from the carrier frequency to baseband using a single mixing stage.

  3. Carrier frequency offset - Wikipedia

    en.wikipedia.org/wiki/Carrier_frequency_offset

    In order to estimate this additional integer CFO, a matched filter matching the fractional CFO-compensated received signal against the modulated long preamble waveforms can be used. The coefficients of the matched filter are the complex conjugate of the long preamble and they are modulated by a sinusoidal wave whose frequency is a possible ...

  4. IQ classification - Wikipedia

    en.wikipedia.org/wiki/IQ_classification

    IQ scores can differ to some degree for the same person on different IQ tests, so a person does not always belong to the same IQ score range each time the person is tested (IQ score table data and pupil pseudonyms adapted from description of KABC-II norming study cited in Kaufman 2009). [12] [13] Pupil KABC-II WISC-III WJ-III Asher: 90: 95: 111 ...

  5. Intelligence: Knowns and Unknowns - Wikipedia

    en.wikipedia.org/wiki/Intelligence:_Knowns_and...

    Intelligence quotient (IQ) tests do correlate with one another and that the view that the general intelligence factor (g) is a statistical artifact is a minority one. IQ scores are fairly stable during development in the sense that while a child's reasoning ability increases, the child's relative ranking in comparison to that of other ...

  6. U.S. presidential IQ hoax - Wikipedia

    en.wikipedia.org/wiki/U.S._Presidential_IQ_hoax

    In 2001, political psychologist Aubrey Immelman made an IQ estimation of G. W. Bush based on the SAT Reasoning Test results of Bush (1206) and Al Gore, who achieved IQ scores of 133 and 134 in his school years, and an SAT of 1355: "It's tempting to employ Al Gore's IQ:SAT ratio of 134:1355 as a formula for estimating Bush's probable intelligence quotient—an exercise in fuzzy statistics that ...

  7. Hold test - Wikipedia

    en.wikipedia.org/wiki/Hold_test

    A review examined whether hold tests, best estimate or regression equation methods were most accurate in predicting overall IQ (full scale IQ) as determined by Wechsler Adult Intelligence Scale (WAIS-R) in a non-neurologically impaired population. It was found that different methods were more accurate depending on the IQ level of participants e ...

  8. Dunning–Kruger effect - Wikipedia

    en.wikipedia.org/wiki/Dunning–Kruger_effect

    In this case, participants are asked to assess their performances in relation to the other participants, for example in the form of estimating the percentage of peers they outperformed. [ 17 ] [ 13 ] [ 2 ] The Dunning–Kruger effect is present in both cases, but tends to be significantly more pronounced when done in relative terms.

  9. In-phase and quadrature components - Wikipedia

    en.wikipedia.org/wiki/In-phase_and_quadrature...

    IQ data has extensive use in many signal processing contexts, including for radio modulation, software-defined radio, audio signal processing and electrical engineering. I/Q data is a two-dimensional stream. Some sources treat I/Q as a complex number; [1] with the I and Q components corresponding to the real and imaginary parts.