Advantages of Karhunen Loève transform over fast Fourier transform for planetary radar and space debris detection

Details Advantages of Karhunen Loève transform over fast Fourier transform for planetary radar and space debris detection Advantages of Karhunen Loève transform over fast Fourier transform for planetary radar and space debris detection

Apr 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007acaau..60..775m&link_type=abstract

Acta Astronautica, Volume 60, Issue 8-9, p. 775-779.

Astronomy and Astrophysics

Astronomy

Scientific paper

The present article describes that the range of any radiotelescope (and radar in general) may be increased by virtue of software, if one replaces the fast Fourier transform by the Karhunen Loève transform. The range increases with the inverse of the fourth root of the signal-to-noise ratio when this ratio decreases. Thus, the range on any radiotelescope (and radar) may be increased without changing the hardware at all, but by changing the software only. This improvement in the range of the radiotelescope is currently implemented at the 32-m antenna located at Medicina, near Bologna, in Italy, for both SETI and general radioastronomy.

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