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Sensors 2008, 8(12), 8224-8236; doi:10.3390/s8128224
Article

A Modified Subpulse SAR Processing Procedure Based on the Range-Doppler Algorithm for Synthetic Wideband Waveforms

1,* , 1
, 2
 and 1
Received: 14 October 2008; in revised form: 10 December 2008 / Accepted: 10 December 2008 / Published: 11 December 2008
(This article belongs to the Special Issue Synthetic Aperture Radar (SAR))
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Abstract: Synthetic wideband waveforms (SWW) combine a stepped frequency CW waveform and a chirp signal waveform to achieve high range resolution without requiring a large bandwidth or the consequent very high sampling rate. If an efficient algorithm like the range-Doppler algorithm (RDA) is used to acquire the SAR images for synthetic wideband signals, errors occur due to approximations, so the images may not show the best possible result. This paper proposes a modified subpulse SAR processing algorithm for synthetic wideband signals which is based on RDA. An experiment with an automobile-based SAR system showed that the proposed algorithm is quite accurate with a considerable improvement in resolution and quality of the obtained SAR image.
Keywords: Synthetic Aperture Radar (SAR); Range-Doppler Algorithm (RDA); Synthetic Wideband Waveforms (SWW) Synthetic Aperture Radar (SAR); Range-Doppler Algorithm (RDA); Synthetic Wideband Waveforms (SWW)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Lim, B.-G.; Woo, J.-C.; Lee, H.-Y.; Kim, Y.-S. A Modified Subpulse SAR Processing Procedure Based on the Range-Doppler Algorithm for Synthetic Wideband Waveforms. Sensors 2008, 8, 8224-8236.

AMA Style

Lim B-G, Woo J-C, Lee H-Y, Kim Y-S. A Modified Subpulse SAR Processing Procedure Based on the Range-Doppler Algorithm for Synthetic Wideband Waveforms. Sensors. 2008; 8(12):8224-8236.

Chicago/Turabian Style

Lim, Byoung-Gyun; Woo, Jea-Choon; Lee, Hee-Young; Kim, Young-Soo. 2008. "A Modified Subpulse SAR Processing Procedure Based on the Range-Doppler Algorithm for Synthetic Wideband Waveforms." Sensors 8, no. 12: 8224-8236.



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