POSC Specifications Version 3.0 |
Epicentre Standard Values ref_wavelet_filter_algorithm |
identifier | description | source _reference | source | version | status |
---|---|---|---|---|---|
ref _version .identifier | |||||
Ricker wavelet | A zero-phase wavelet, the second derivative of the error function. | Dictionary of Exploration Geophysics | POSC | epicentre 2.1 | current |
Butterworth filter | A type of frequency filter characterized by a very flat passband, often used as an alias filter. | Dictionary of Exploration Geophysics | POSC | epicentre 2.1 | current |
Hanning function | A function used to shape the cutoff of a window or gate in data processing to avoid the undesirable effects of sharp truncation. [0.5+0.5cos(theta), theta inclusive between plus and minus pi],[0, elsewhere] | Dictionary of Exploration Geophysics | POSC | epicentre 2.1 | current |
Hamming function | A function used to shape the cutoff of a window or gate in data processing to avoid the undesirable effects of sharp truncation. [0.54 +0.46cos(theta), theta inclusive between plus and minus pi], [0, elsewhere] | Dictionary of Exploration Geophysics | POSC | epicentre 2.1 | current |
boxcar function | A rectangular window function with a value of one within the window and zero outside the window. | POSC | epicentre 2.1 | current | |
linear taper function | A function used to shape the cutoff of a window or gate in data processing to avoid the undesirable effects of sharp truncation. The function tapers from a value of one to a value of zero at the boundary of the window. | POSC | epicentre 2.1 | current | |
triangle function | A triangular window function with a value of one at a single point of the window tapering in a linear fashion to zero at each boundary of the window. | POSC | epicentre 2.1 | current | |
Weiner filter | A causal filter which will transform an input into a desired output as nearly as possible, subject to certain constraints. | Dictionary of Exploration Geophysics | POSC | epicentre 2.1 | current |
Chebychev filter | A band-pass filter with a steep rolloff, characterized by a uniform ripple in the passband. | Dictionary of Exploration Geophysics | POSC | epicentre 2.1 | current |