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A Generalized Semi-Analytical model for delay/Doppler altimetry

Abstract : This paper introduces a new model for delay/Doppler altimetry, taking into account the effect of antenna mispointing. After defining the proposed model, the effect of the antenna mispointing on the altimetric waveform is analyzed as a function of along-track and across-track angles. Two least squares approaches are investigated for estimating the parameters associated with the proposed model. The first algorithm estimates four parameters including the across-track mispointing (which affects the echo's shape). The second algorithm uses the mispointing angles provided by the star-trackers and estimates the three remaining parameters. The proposed model and algorithms are validated via simulations conducted on both synthetic and real data.
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Submitted on : Thursday, April 30, 2015 - 9:36:09 AM
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  • HAL Id : hal-01147249, version 1
  • OATAO : 13131

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Abderrahim Halimi, Corinne Mailhes, Jean-Yves Tourneret, François Boy, Thomas Moreau. A Generalized Semi-Analytical model for delay/Doppler altimetry. International Geoscience & Remote Sensing Symposium - IGARSS 2014, Jul 2014, Quebec, Canada. pp. 5126-5129. ⟨hal-01147249⟩

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