Next Article in Journal
Response of Spectral Reflectances and Vegetation Indices on Varying Juniper Cone Densities
Previous Article in Journal
Area-Based Approach for Mapping and Monitoring Riverine Vegetation Using Mobile Laser Scanning
Remote Sens. 2013, 5(10), 5304-5329; doi:10.3390/rs5105304
Article

Airborne Downward Looking Sparse Linear Array 3-D SAR Heterogeneous Parallel Simulation

1,2,* , 1
,
1
,
1
 and
1
Received: 22 August 2013 / Revised: 9 October 2013 / Accepted: 14 October 2013 / Published: 22 October 2013

Abstract

The airborne downward looking sparse linear array three dimensional synthetic aperture radar (DLSLA 3-D SAR) operates nadir observation with the along-track synthetic aperture formulated by platform movement and the cross-track synthetic aperture formulated by physical sparse linear array. Considering the lack of DLSLA 3-D SAR data in the current preliminary study stage, it is very important and essential to develop DLSLA 3-D SAR simulation (echo generation simulation and image reconstruction simulation, including point targets simulation and 3-D distributed scene simulation). In this paper, DLSLA 3-D SAR imaging geometry, the echo signal model and the heterogeneous parallel technique are discussed first. Then, heterogeneous parallel echo generation simulation with time domain correlation and the frequency domain correlation method is described. In the following, heterogeneous parallel image reconstruction simulation with two imaging algorithms, e.g., 3-D polar format algorithm, polar formatting and L1 regularization algorithm is discussed. Finally, the point targets and the 3-D distributed scene simulation are demonstrated to validate the effectiveness and performance of our proposed heterogeneous parallel simulation technique. The 3-D distributed scene employs airborne X-band DEM and P-band Circular SAR image of the same area as simulation scene input.
Keywords: airborne downward looking sparse linear array 3-D SAR; heterogeneous parallel; echo generation; time domain correlation; frequency domain correlation; image reconstruction; polar formatting; L1 regularization airborne downward looking sparse linear array 3-D SAR; heterogeneous parallel; echo generation; time domain correlation; frequency domain correlation; image reconstruction; polar formatting; L1 regularization
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.

Share & Cite This Article

Further Mendeley | CiteULike
Export to BibTeX |
EndNote
MDPI and ACS Style

Peng, X.; Wang, Y.; Hong, W.; Tan, W.; Wu, Y. Airborne Downward Looking Sparse Linear Array 3-D SAR Heterogeneous Parallel Simulation. Remote Sens. 2013, 5, 5304-5329.

View more citation formats

Article Metrics

For more information on the journal, click here

Comments

Cited By

[Return to top]
Remote Sens. EISSN 2072-4292 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert