Title :
Evaluation of interpolation kernels for SAR interferometry
Author :
Hanssen, Ramon ; Bamler, Richard
Author_Institution :
Inst. for Earth Oriented Space Res., Delft Univ. of Technol., Netherlands
fDate :
1/1/1999 12:00:00 AM
Abstract :
Interpolation is required in interferometric synthetic aperture radar (SAR) processing for coregistration of complex signals. Straightforward system theoretical considerations provide objective figures of merit for interpolators, such as interferometric decorrelation and phase noise. Theoretical and simulation results are given for nearest neighbor, piecewise linear, four- and six-point cubic convolution, and truncated sinc kernels
Keywords :
geophysical signal processing; geophysical techniques; interpolation; radar imaging; remote sensing by radar; synthetic aperture radar; terrain mapping; InSAR; SAR interferometry; complex signal; coregistration; geophysical measurement technique; interferometric decorrelation; interpolation kernel; land surface; objective figures of merit; phase noise; radar imaging; radar remote sensing; six-point cubic convolution; synthetic aperture radar; system theory; terrain mapping; truncated sinc kernel; Convolution; Decorrelation; Interpolation; Kernel; Nearest neighbor searches; Phase noise; Piecewise linear techniques; Signal processing; Synthetic aperture radar; Synthetic aperture radar interferometry;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
