An application of digital filter in sky image processing.

Details An application of digital filter in sky image processing. An application of digital filter in sky image processing.

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989acaps...9...84w&link_type=abstract

Acta Astrophys. Sin., Vol. 9, No. 1, p. 84 - 90

Astronomy and Astrophysics

Astrophysics

Radio Telescopes: Image Processing

Scientific paper

For a long period, the images obtained by the Miyun aperture synthesis radiotelescope have been polluted by many fringes. These fringes are caused by the offset of the receiver and are concentric with the North Pole. In this paper, the technique of digital filter is used to process the observational data, thus the fringes can be completely removed in the areas where the latitude is lower than 80° and the quality of the images is considerable improved.

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