Adaptive image reconstruction for sparse arrays using single-cycle terahertz pulses
Optics Letters, Vol. 35, Issue 10, pp. 1680-1682 (2010)
http://dx.doi.org/10.1364/OL.35.001680
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Abstract
We demonstrate a noniterative adaptive reconstruction technique to significantly improve the imaging performance of sparse terahertz arrays employing single-cycle pulses. Grating lobe artifacts are suppressed by an adaptive weighting factor derived from the temporal coherence of signals from neighboring array elements. Image quality is further improved by a second weighting factor based on the spatial coherence of signals across the entire array. Experiments are performed with a synthetic aperture two-dimensional sparse array of
© 2010 Optical Society of America
OCIS Codes
(110.5100) Imaging systems : Phased-array imaging systems
(110.6795) Imaging systems : Terahertz imaging
ToC Category:
Imaging Systems
History
Original Manuscript: January 25, 2010
Revised Manuscript: April 2, 2010
Manuscript Accepted: April 9, 2010
Published: May 11, 2010
Citation
Zhuopeng Zhang and Takashi Buma, "Adaptive image reconstruction for sparse arrays using single-cycle terahertz pulses," Opt. Lett. 35, 1680-1682 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-10-1680
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