Back to Search
Start Over
Three-Dimensional Imaging Technique of Space Moving Target Based on Spaceborne Along-Cross Track Millimeter-Wave In-ISAR.
- Source :
-
Journal of Astronautics / Yuhang Xuebao . Feb2013, Vol. 34 Issue 2, p237-245. 9p. - Publication Year :
- 2013
-
Abstract
- The three-dimensional (3-D) images of space targets with spaceborne along/cross track millimeter-wave (MMW) interferometric inverse synthetic aperture radar (In-ISAR) is studied under the condition of low SNR input in this paper. Because the traditional Range-Doppler (RD) algorithm can't get good performance when the target size is large and required high resolution. The wave number domain imaging algorithm is introduced to obtain two-dimensional (2-D) high resolution images of space moving targets. Then along/cross track interferometric processing is implemented for the three 2-D images obtained from three antennas to determine 3-D positions of the target scattering points. As the foundation of 2-D imaging and image registration, target detection and 3-D velocity estimation at low SNR input are studied here. The requirement for velocity estimation accuracy is analyzed. Finally, numerical experimental results are given to demonstrate the effectiveness of the along/cross track In-SAR system. [ABSTRACT FROM AUTHOR]
Details
- Language :
- Chinese
- ISSN :
- 10001328
- Volume :
- 34
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Journal of Astronautics / Yuhang Xuebao
- Publication Type :
- Periodical
- Accession number :
- 87528630
- Full Text :
- https://doi.org/10.3873.j.issn.1000-1328.2013.02.013