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A discrete wavelet transform approach to multiresolution complex SAR image generation
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DOI：10.1109/LGRS.2007.895673.png)
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We present a signal processing approach using discrete wavelet transform (DWT) for the generation of complex synthetic aperture radar (SAR) images at an arbitrary number of dyadic scales of resolution. The method is computationally efficient and is free from significant system-imposed limitations present in traditional subaperture-based multiresolution image formation. Problems due to aliasing associated with biorthogonal decomposition of the complex signals are addressed. The lifting scheme of DWT is adapted to handle complex signal approximations and employed to further enhance the computational efficiency. Multiresolution SAR images formed by the proposed method are presented.
Keyword:
discrete wavelet transform (DWT)
lifting scheme
multiresolution SAR images
synthetic aperture radar (SAR)
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