Excision of Distance Measuring Equipment Interference from Radio Astronomy Signals

Details Excision of Distance Measuring Equipment Interference from Radio Astronomy Signals Excision of Distance Measuring Equipment Interference from Radio Astronomy Signals

Jun 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aj....129.2933z&link_type=abstract

The Astronomical Journal, Volume 129, Issue 6, pp. 2933-2939.

Astronomy and Astrophysics

Astronomy

3

Methods: Data Analysis

Scientific paper

Distance measuring equipment (DME) signals transmitted by aircraft in flight present a strong source of interference in radio astronomy bands around 1 GHz. In this paper, we present a method for greatly suppressing this interference without significant loss of radio astronomy data. The method exploits the known structure of the DME waveform to perform a time/frequency domain blanking on the aggregate signal. Results are presented that illustrate the effectiveness of the procedure. Efficient implementation of the blanking algorithm is also considered.

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