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photography, filter factor refers to the multiplicative amount of light a filter blocks. The table below illustrates the relationship between filter factor, the...

attenuation. A band-pass filter can be characterized by its Q factor. The Q-factor is the reciprocal of the fractional bandwidth. A high-Q filter will have a narrow...

filter depends on the filter design. The filter is sometimes called a high-cut filter, or treble-cut filter in audio applications. A low-pass filter is...

elliptic filter (also known as a Cauer filter, named after Wilhelm Cauer, or as a Zolotarev filter, after Yegor Zolotarev) is a signal processing filter with...

The Butterworth filter is a type of signal processing filter designed to have a frequency response that is as flat as possible in the passband. It is also...

inverse of a band-pass filter. A notch filter is a band-stop filter with a narrow stopband (high Q factor). Narrow notch filters (optical) are used in...

has an infinite quality factor. More generally, the output of a second-order low-pass filter with a very high quality factor responds to a step input...

response, the Q (quality factor), and the tuned frequency can often be set with inexpensive variable resistors. In some active filter circuits, one parameter...

Compared to finite-order approximations of the Gaussian filter, the Bessel filter has better shaping factor, flatter phase delay, and flatter group delay than...

For statistics and control theory, Kalman filtering, also known as linear quadratic estimation, is an algorithm that uses a series of measurements observed...

anti-aliasing filter. Let M/L denote the decimation factor, where: M, L ∈ Z {\displaystyle \mathbb {Z} } ; M > L. Increase (resample) the sequence by a factor of...

numbers and some of their uses include: Filter factor Filter (photography) Filter (optics) "Kodak Wratten numbered filters offered by Tiffen". Tiffen. Archived...

VCVS filter allows high Q factor and passband gain without the use of inductors. A VCVS filter also has the advantage of independence: VCVS filters can...

Chebyshev filters are analog or digital filters that have a steeper roll-off than Butterworth filters, and have either passband ripple (type I) or stopband...

Recursive least squares (RLS) is an adaptive filter algorithm that recursively finds the coefficients that minimize a weighted linear least squares cost...