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Electromagnetic matched-field processing for target height finding with over-the-horizon radar

Publication ,  Journal Article
Papazoglou, M; Krolik, JL
Published in: ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
January 1, 1997

The refraction of over-the-horizon skywave radar signals by the ionosphere facilitates wide-area surveillance. While current systems measure target ground range, azimuth, and velocity they do not estimate target altitude, which is important for classification purposes. In this paper, a method akin to matched-field processing in underwater acoustics is proposed for target height-finding. The approach exploits the delay-Doppler differences between direct and surface-reflected multipath returns from the target. In particular, the coherent sum of these multipath returns can be matched in the complex delay-Doppler space for a single dwell to estimate target altitude, ground range, and radial velocity. In this paper, a maximum likelihood estimate (MLE) of these target coordinates is developed without requiring knowledge of the target backscatter reflection coefficients. The performance of the MLE is evaluated through simulation for an uncertain quasi-parabolic ionosphere and compared to the Cramer-Rao lower bound (CRLB).

Duke Scholars

Published In

ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings

ISSN

0736-7791

Publication Date

January 1, 1997

Volume

1

Start / End Page

559 / 562
 

Citation

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MLA
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Papazoglou, M., & Krolik, J. L. (1997). Electromagnetic matched-field processing for target height finding with over-the-horizon radar. ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, 1, 559–562.
Papazoglou, M., and J. L. Krolik. “Electromagnetic matched-field processing for target height finding with over-the-horizon radar.” ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings 1 (January 1, 1997): 559–62.
Papazoglou M, Krolik JL. Electromagnetic matched-field processing for target height finding with over-the-horizon radar. ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. 1997 Jan 1;1:559–62.
Papazoglou, M., and J. L. Krolik. “Electromagnetic matched-field processing for target height finding with over-the-horizon radar.” ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, vol. 1, Jan. 1997, pp. 559–62.
Papazoglou M, Krolik JL. Electromagnetic matched-field processing for target height finding with over-the-horizon radar. ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. 1997 Jan 1;1:559–562.

Published In

ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings

ISSN

0736-7791

Publication Date

January 1, 1997

Volume

1

Start / End Page

559 / 562