Multi-Antenna SAR Three-Dimensional Imaging
SAR can provide two-dimensional high-resolution radar images in azimuth and elevation dimensions. However, since two-dimensional radar images are obtained by projecting the three-dimensional distributed targets onto the twodimensional plane, they usually suffer from geometric distortions, such as foreshortening, layover, and so forth. Furthermore, conventional SAR generally operates at the side-looking mode and exhibits strong shadowing caused by buildings, hills, and valleys, which may result in information loss of the explored area. Interferometric SAR (InSAR) with dual antennas can take from the two antennas, and the terrain height can be calculated with the estimated phase difference; however, ...
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