ASAR Practical 1: SAR Processing and Analyses Tools
ASAR Practical 1: SAR Processing and Analyses Tools
ASAR Practical 1: SAR Processing and Analyses Tools
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Spectral analysis in <strong>SAR</strong>Tool<br />
• What is <strong>SAR</strong> cross-spectrum?<br />
October 10, 2007<br />
Ocean2007 Hangzhou<br />
• Estimated as the ensemble average of the conjugate<br />
cross product of the Fourier transform of successive<br />
sub-looks<br />
• Why is this interesting?<br />
• Significant speckle noise reduction by removing non<br />
coherent contribution of the <strong>SAR</strong> signal<br />
• 180-degree ambiguity removal of the wave propagation<br />
direction by taking advantage of the phase shift caused by<br />
wave crest displacement during the integration time<br />
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