Effect of bandwidth on wideband-stap performance

Unnikrishna Pillai, Ke Yong Li, Joseph R. Guerci

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A wideband signal occupies a finite bandwidth that is significant compared to its carrier frequency. As a result when transmitted, its returns cause bandwidth dispersion across the antenna. It is shown here that the effect of the finite bandwidth is to introduce a set of uncorrelated return signals for every physical scatter in the field. Further, each such uncorrelated return contains a set of coherent signals with different directional and Doppler components that result from a jittering effect both in angle and Doppler domain. As a result, adaptive clutter cancellation using traditional processing schemes does not work well. Although in principle it is possible to correct these decorrelating effects by 3D spacetime adaptive processing (STAP), the present day methods are quite costly and difficult to implement. In addition to the new wideband signal modeling framework mentioned above, we outline a hierarchical processing scheme which has the potential for dramatically reducing both processing and sample support burdens.

Original languageEnglish (US)
Title of host publicationConference Record of the 41st Asilomar Conference on Signals, Systems and Computers, ACSSC
Pages2195-2198
Number of pages4
DOIs
StatePublished - 2007
Event41st Asilomar Conference on Signals, Systems and Computers, ACSSC - Pacific Grove, CA, United States
Duration: Nov 4 2007Nov 7 2007

Other

Other41st Asilomar Conference on Signals, Systems and Computers, ACSSC
CountryUnited States
CityPacific Grove, CA
Period11/4/0711/7/07

Fingerprint

Bandwidth
Processing
Antennas

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Pillai, U., Li, K. Y., & Guerci, J. R. (2007). Effect of bandwidth on wideband-stap performance. In Conference Record of the 41st Asilomar Conference on Signals, Systems and Computers, ACSSC (pp. 2195-2198). [4487630] https://doi.org/10.1109/ACSSC.2007.4487630

Effect of bandwidth on wideband-stap performance. / Pillai, Unnikrishna; Li, Ke Yong; Guerci, Joseph R.

Conference Record of the 41st Asilomar Conference on Signals, Systems and Computers, ACSSC. 2007. p. 2195-2198 4487630.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Pillai, U, Li, KY & Guerci, JR 2007, Effect of bandwidth on wideband-stap performance. in Conference Record of the 41st Asilomar Conference on Signals, Systems and Computers, ACSSC., 4487630, pp. 2195-2198, 41st Asilomar Conference on Signals, Systems and Computers, ACSSC, Pacific Grove, CA, United States, 11/4/07. https://doi.org/10.1109/ACSSC.2007.4487630
Pillai U, Li KY, Guerci JR. Effect of bandwidth on wideband-stap performance. In Conference Record of the 41st Asilomar Conference on Signals, Systems and Computers, ACSSC. 2007. p. 2195-2198. 4487630 https://doi.org/10.1109/ACSSC.2007.4487630
Pillai, Unnikrishna ; Li, Ke Yong ; Guerci, Joseph R. / Effect of bandwidth on wideband-stap performance. Conference Record of the 41st Asilomar Conference on Signals, Systems and Computers, ACSSC. 2007. pp. 2195-2198
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