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- W2129120902 abstract "For high quality SAR processing, the Doppler Centroid frequency is needed. However, SAR data are sampled along the azimuth direction at the Pulse Repetition Frequency (PRF); the estimation of the Doppler centroid frequency by means of spectral analysis techniques may produce ambiguous results due to aliases. The mathematical expression of the residual error that occurs when SAR data are focused with an incorrect alias of the PRF is derived. Then, a blind deconvolution technique is used to estimate the actual PRF replica from the focused image. Squinted X-band data, corresponding to those that will be generated by the SIR-C mission, have been generated from the NASA-AIR airplane L and C band data by means of an inversion of the focusing process." @default.
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- W2129120902 date "2005-08-24" @default.
- W2129120902 modified "2023-09-26" @default.
- W2129120902 title "Sir- C/x-sar: The Estimation Of The Doppler Cent:roid Ambiguity" @default.
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- W2129120902 doi "https://doi.org/10.1109/igarss.1991.580302" @default.
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