2017-07-27T19:27:09+03:00[Europe/Moscow] en true Bode plot, Chirp, Negative feedback, Analytic signal, Aliasing, Analog signal, Bandwidth (signal processing), Discrete-time signal, Estimation theory, Sampling (signal processing), Short-time Fourier transform, Signal (electrical engineering), Window function, Impulse response, Spectrum analyzer, Hilbert transform, Spectral density, Image scaling, In-phase and quadrature components, Wavelet transform, Baseband, Cross-covariance flashcards
Signal processing

# Signal processing

• Bode plot
In electrical engineering and control theory, a Bode plot /ˈboʊdi/ is a graph of the frequency response of a system.
• Chirp
A chirp is a signal in which the frequency increases (up-chirp) or decreases (down-chirp) with time.
• Negative feedback
Negative feedback occurs when some function of the output of a system, process, or mechanism is fed back in a manner that tends to reduce the fluctuations in the output, whether caused by changes in the input or by other disturbances.
• Analytic signal
In mathematics and signal processing, an analytic signal is a complex-valued function that has no negative frequency components.
• Aliasing
In signal processing and related disciplines, aliasing is an effect that causes different signals to become indistinguishable (or aliases of one another) when sampled.
• Analog signal
(For a broader coverage related to this topic, see Signal (electronics).) An analog signal is any continuous signal for which the time varying feature (variable) of the signal is a representation of some other time varying quantity, i.
• Bandwidth (signal processing)
Bandwidth is the difference between the upper and lower frequencies in a continuous set of frequencies.
• Discrete-time signal
A discrete signal or discrete-time signal is a time series consisting of a sequence of quantities.
• Estimation theory
Estimation theory is a branch of statistics that deals with estimating the values of parameters based on measured empirical data that has a random component.
• Sampling (signal processing)
In signal processing, sampling is the reduction of a continuous signal to a discrete signal.
• Short-time Fourier transform
The short-time Fourier transform (STFT), or alternatively short-term Fourier transform, is a Fourier-related transform used to determine the sinusoidal frequency and phase content of local sections of a signal as it changes over time.
• Signal (electrical engineering)
A signal as referred to in communication systems, signal processing, and electrical engineering is a function that "conveys information about the behavior or attributes of some phenomenon".
• Window function
In signal processing, a window function (also known as an apodization function or tapering function) is a mathematical function that is zero-valued outside of some chosen interval.
• Impulse response
In signal processing, the impulse response, or impulse response function (IRF), of a dynamic system is its output when presented with a brief input signal, called an impulse.
• Spectrum analyzer
A spectrum analyzer measures the magnitude of an input signal versus frequency within the full frequency range of the instrument.
• Hilbert transform
In mathematics and in signal processing, the Hilbert transform is a linear operator that takes a function, u(t), and produces a function, H(u)(t), with the same domain.
• Spectral density
The power spectrum of a time series describes the distribution of power into frequency components composing that signal.
• Image scaling
In computer graphics and digital imaging, scaling refers to the resizing of a digital image.