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Linear filters

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Kalman filter
algorithm that estimates unknowns from a series of measurements over time
low-pass filter
filter that passes signals with a frequency lower than a certain cutoff frequency, and attenuates signals with higher frequencies
band-pass filter
filter that passes signals within a certain frequency range, and attenuates signals outside that range
high-pass filter
filter that passes signals with a frequency higher than a certain cutoff frequency, and attenuates signals with lower frequencies
anti-aliasing
proces used before a signal sampler to prevent aliasing
quality factor
dimensionless measure for the damping of an oscillator
band-stop filter
filter that passes signals outside a certain frequency range, and attenuates signals within that range
Butterworth filter
type of signal processing filter designed to have a frequency response as flat as possible in the passband
chebyshev filter
analog or digital filters having a steeper roll-off than Butterworth filters, and have passband ripple or stopband ripple
gyrator
A gyrator is a passive, linear, lossless, two-port electrical network element proposed in 1948 by Bernard D. H. Tellegen as a hypothetical fifth linear element after the resistor, capacitor, inductor and ideal transformer. Unlike the four conventional elements, the gyrator is non-reciprocal. Gyrators permit network realizations of two-(or-more)-port devices which cannot be realized with just the four conventional elements. In particular, gyrators make possible network realizations of isolators and circulators. Gyrators do not however change the range of one-port devices that can be realized. A
active filter
a type of analog circuit implementing an electronic filter using active components, typically an amplifier
Wiener filter
filter to reduce the amount of noise present in a signal
mechanical filter
Type of signal processing filter
Bessel filter
type of analog linear filter in electronics
elliptic filter
signal processing filter
Gabor filter
filter used in image processing
Linear filter
filter having a linear response
Gaussian filter
filter in electronics and signal processing
Sallen–Key topology
electronic filter topology
filter bank
tool for Digital Signal Processing
Passive analogue filter development
filter used in signal processing on continuous-time signals
all-pass filter
filter that passes signals of all frequencies with same gain, but changes the phase relationship among various frequencies
Raised-cosine filter
spectrally efficient pulse-shaping filter satisfying the Nyquist property, commonly used in communication systems
Quarter-wave impedance transformer
electrical component
recursive Bayesian estimation
Process for estimating a probability density function
equalization
changing the balance of frequency components in an audio signal
waveguide filter
electronic filter that is constructed with waveguide technology
softsensor
software where several measurements are processed together
Crystal filter
electronic filter
prototype filter
electronic filter designs that are used as a template to produce a modified filter design for a particular application
Composite image filter
electronic filter
Optimum "L" filter
State variable filter
A type of variable active electronic filter
Lattice phase equaliser
type of signal processing filter
Linkwitz–Riley filter
Type of electronic filter used in audio
Root-raised-cosine filter
linear filter in the time domain