“deconvolution”的概念、定义、翻译、参考文献-科学参考

deconvolution

Astronomy

Any computational method used in signal processing to correct in part for the broadening or blurring effect of an instrument or the atmosphere. Deconvolution methods are used extensively in aperture synthesis to reduce the distorting effects of the telescope beam pattern. See Clean; Maximum-Entropy Method.

Computer

See convolution.

Electronics and Electrical Engineering

The process of reversing the convolution of two signals. Deconvolution is typically performed for a recorded signal that is a mixture (convolution) of real data and noise, in order to separate the two. Unlike convolution, there is no simple formula, and some knowledge of the nature of the noise component is required for a successful outcome.

Geology and Earth Sciences

Inverse filter, or the action of undoing the effect of a previous convolution process. The convolution of the Earth’s impulse response R (where R is the set of reflection coefficients characteristic of particular layered strata) with a wavelet W results in the observed seismic trace S, such that S = RW. A spike signal (Dirac function) (δ‎) at time zero is the convolution of the wavelet W with some designed operator D such that DW = δ‎. Thus if the operator D is applied to the seismic trace S, R can be obtained: D*S = D*R*W = D*W*R = δ‎*R = R. (It should be noted that convolution of a spike function δ‎ leaves the function unaltered, hence δ‎*R = R).

单词	deconvolution
释义	deconvolution Astronomy Any computational method used in signal processing to correct in part for the broadening or blurring effect of an instrument or the atmosphere. Deconvolution methods are used extensively in aperture synthesis to reduce the distorting effects of the telescope beam pattern. See Clean; Maximum-Entropy Method. Computer See convolution. Electronics and Electrical Engineering The process of reversing the convolution of two signals. Deconvolution is typically performed for a recorded signal that is a mixture (convolution) of real data and noise, in order to separate the two. Unlike convolution, there is no simple formula, and some knowledge of the nature of the noise component is required for a successful outcome. Geology and Earth Sciences Inverse filter, or the action of undoing the effect of a previous convolution process. The convolution of the Earth’s impulse response R (where R is the set of reflection coefficients characteristic of particular layered strata) with a wavelet W results in the observed seismic trace S, such that S = RW. A spike signal (Dirac function) (δ‎) at time zero is the convolution of the wavelet W with some designed operator D such that DW = δ‎. Thus if the operator D is applied to the seismic trace S, R can be obtained: DS = DRW = DWR = δ‎R = R. (It should be noted that convolution of a spike function δ‎ leaves the function unaltered, hence δ‎R* = R).
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