DEM generation using bistatic interferometry: High-coherence pixel selection and residual reference phase compensation

Abstract

A novel subsidence monitoring technique based on space-surface bistatic differential interferometry using GNSS as transmitters SCIENCE CHINA Information Sciences 58, 062304 (2015); Novel cover selection criterion for spatial steganography using linear pixel prediction error SCIENCE CHINA Information Sciences 59, 059103 (2016); Multichannel DEM reconstruction method based on Markov random fields for bistatic SAR SCIENCE CHINA Information Sciences 58, 062302 (2015); Reference satellite selection method for GNSS high-precision relative positioning Geodesy and Geodynamics 8, 125 (2017); High-precision deformation monitoring algorithm for GBSAR system: rail determination phase error compensation SCIENCE CHINA Information Sciences 59, 082307 (2016);. RESEARCH PAPER .

Recent progress in Bistatic SAR with illuminators of opportunity

“…A field experiment was carried out to validate its millimeter accuracy ability of deformation measurement. Another application is regarding the DEM generation through Space-Surface BiSAR interferometry with noncooperative SAR radar satellites as illuminators, which has been researched by both Zeng et al [8] and Hong et al [9]. In ref.…”

“…In ref. [8], the YaoGan-3 (an L-band space-borne SAR) was selected as the transmitter and the two stationary receivers were mounted on the top of a tall building. An iterative LS approach was proposed to tackle the problem of inaccurate antennas positions in the receiver end, successfully achieving DEM generation with an accuracy of about 1-2 m for some targets.…”