[en] As an extension of Synthetic Aperture Radar Interferom-
etry, Multiple Aperture Interferometry (MAI) is a spectral diversity
technique that allows the determination of azimuth displace-
ments from phase shift measurements. This is made possi-
ble through the creation of backward- and forward-looking
Single-Look-Complex (SLC) data. Then, the phase differ-
ence between the backward and forward-looking interfero-
gram is translated into a displacement. Using SLC data, MAI
requires a proper azimuth splitband operator. Different tech-
niques exist to split the azimuth band, but they are often too
briefly described in the MAI literature. In this conference pa-
per, we analyze the signal properties of the Sentinel-1 TOPS
acquisition mode and define an azimuth subbanding proto-
col. In particular, we look at the role of de-apodization and
apodization in the band filtering operation. We focus our anal-
ysis on Sentinel-1 data in Interferometric Wideswath mode
over the Roi Baudouin Ice Shelf, East Antarctica.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Kirkove, Murielle ; Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Didier Massonnet, Marc Rossi, César Carmona, Frédéric Adragna, Gilles Peltzer, Kurt Feigl, and Thierry Rabaute, “The displacement field of the Landers earthquake mapped by radar interferometry,” Nature, vol. 364, no. 6433, pp. 138-142, 1993.
Tim J. Wright, Barry E. Parsons, and Zhong Lu, “Toward mapping surface deformation in three dimensions using insar,” Geophysical Research Letters, vol. 31, no. 1, 2004.
Noa B.D. Bechor and Howard A. Zebker, “Measuring two-dimensional movements using a single InSAR pair,” Geophysical Research Letters, vol. 33, no. 16, pp. 1-5, 2006.
Hyung Sup Jung, Joong Sun Won, and Sang Wan Kim, “An improvement of the performance of multiple-aperture SAR interferometry (MAI),” IEEE Transactions on Geoscience and Remote Sensing, vol. 47, no. 8, pp. 2859-2869, 2009.
H. Jung, Z. Lu, and L. Zhang, “Feasibility of along-track displacement measurement from sentinel-1 interferometric wide-swath mode,” IEEE Transactions on Geoscience and Remote Sensing, vol. 51, no. 1, pp. 573-578, 2013.
Hyung Sup Jung, Won Jin Lee, and Lei Zhang, “Theoretical accuracy of along-track displacement measurements from multiple-aperture interferometry (MAI),” Sensors (Switzerland), vol. 14, no. 9, pp. 17703-17724, 2014.
Pietro Mastro, Carmine Serio, Guido Masiello, and Antonio Pepe, “The multiple aperture sar interferometry (mai) technique for the detection of large ground displacement dynamics: An overview,” Remote Sensing, vol. 12, no. 7, 2020.
H J Jiang, Y Y Pei, and J Li, “Sentinel-1 TOPS interferometry for along-track displacement measurement,” IOP Conference Series: Earth and Environmental Science, vol. 57, pp. 012019, feb 2017.
M. Kirkove, A. Orban, D. Derauw, and C. Barbier, “A topsar processor based on the omega-k algorithm: Evaluation with sentinel-1 data,” in Proceedings of EUSAR 2016: 11th European Conference on Synthetic Aperture Radar, 2016, pp. 1-5.
