Английская Википедия:Bandwidth smearing
Материал из Онлайн справочника
Шаблон:Technical Bandwidth smearing is a chromatic aberration of the reconstructed image of a celestial body observed by an astronomical interferometer that occurs because of the frequency bandwidth. In Fourier terms, the different frequencies of the bandwidth probe different spatial frequencies which results in a reconstruct map containing elongated radial features.
It is overcome by going to higher spectral resolutions or, in radioastronomy, by using different centres of phase for image reconstruction.
References
- Bridle, Alan H. and Schwab, Frederic R., Wide Field Imaging I: Bandwidth and Time-Average Smearing in Synthesis imaging in radio astronomy (1989), eds. Richard A. Perley, Frederic R. Schwab, Astronomical Society of the Pacific Conference Series, vol. 6, Шаблон:ISBN, p. 247.
