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  2. Nyquist–Shannon sampling theorem - Wikipedia

    en.wikipedia.org/wiki/Nyquist–Shannon_sampling...

    Nyquist–Shannon sampling theorem. The Nyquist–Shannon sampling theorem is an essential principle for digital signal processing linking the frequency range of a signal and the sample rate required to avoid a type of distortion called aliasing. The theorem states that the sample rate must be at least twice the bandwidth of the signal to avoid ...

  3. Oversampling - Wikipedia

    en.wikipedia.org/wiki/Oversampling

    Oversampling. In signal processing, oversampling is the process of sampling a signal at a sampling frequency significantly higher than the Nyquist rate. Theoretically, a bandwidth-limited signal can be perfectly reconstructed if sampled at the Nyquist rate or above it. The Nyquist rate is defined as twice the bandwidth of the signal.

  4. Compound interest - Wikipedia

    en.wikipedia.org/wiki/Compound_interest

    The amount of interest paid every six months is the disclosed interest rate divided by two and multiplied by the principal. The yearly compounded rate is higher than the disclosed rate. Canadian mortgage loans are generally compounded semi-annually with monthly or more frequent payments. [1] U.S. mortgages use an amortizing loan, not compound ...

  5. Chirp spectrum - Wikipedia

    en.wikipedia.org/wiki/Chirp_spectrum

    The magnitude of this spectrum is shown in the attached figure, where these data points are samples in frequency. The data is cyclic so, in the plot, the zero frequency point is at n = 0 and also at n = 128 (i.e. both points are the same frequency). The point n = 64 corresponds to +fs/2 (and also to -fs/2). Spectrum of Linear Chirp, TB=25, N=128

  6. Undersampling - Wikipedia

    en.wikipedia.org/wiki/Undersampling

    The individual frequency-shifted copies of the original transform are called aliases. The frequency offset between adjacent aliases is the sampling-rate, denoted by f s. When the aliases are mutually exclusive (spectrally), the original transform and the original continuous function, or a frequency-shifted version of it (if desired), can be ...

  7. What is compound interest? How compounding works to ... - AOL

    www.aol.com/finance/what-is-compound-interest...

    The accelerated growth and snowballing interest can make it challenging to pay off debt, like two steps ahead, one step back. Say you have $10,000 in credit card debt at 20% APR.

  8. Frequency response - Wikipedia

    en.wikipedia.org/wiki/Frequency_response

    Magnitude response of a low pass filter with 6 dB per octave or 20 dB per decade roll-off. Measuring the frequency response typically involves exciting the system with an input signal and measuring the resulting output signal, calculating the frequency spectra of the two signals (for example, using the fast Fourier transform for discrete signals), and comparing the spectra to isolate the ...

  9. Frequentist inference - Wikipedia

    en.wikipedia.org/wiki/Frequentist_inference

    Frequentist inference is a type of statistical inference based in frequentist probability, which treats “probability” in equivalent terms to “frequency” and draws conclusions from sample-data by means of emphasizing the frequency or proportion of findings in the data. Frequentist inference underlies frequentist statistics, in which the ...