Title :
Spatial resolution analysis of low frequency UWB SAR
Author :
Hongtu Xie ; Daoxiang An ; Xiaotao Huang ; Zhimin Zhou
Author_Institution :
Coll. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China
Abstract :
In this study, the more accurate spatial resolution for the low frequency (LF) UWB SAR is analyzed considering the wavenumber coupling. First, the SAR imaging geometry is provided, and then the spatial wavenumber of the LF UWB SAR echo data is analyzed. Second, the spatial resolution of the LF UWB SAR is derived based on the spatial wavenumber domain support. Besides, the squint angle is also considered in the spatial resolution derivation. Finally, simulation results are given to prove the validity.
Keywords :
radar imaging; synthetic aperture radar; ultra wideband radar; LF UWB SAR echo data; SAR imaging geometry; low frequency UWB SAR; spatial resolution analysis; spatial resolution derivation; spatial wavenumber; wavenumber coupling; Bandwidth; Couplings; Geometry; Niobium; Spatial resolution; Synthetic aperture radar;
Conference_Titel :
Radar Symposium (IRS), 2015 16th International
Conference_Location :
Dresden
DOI :
10.1109/IRS.2015.7226270
