Title :
Downward-looking 3D-SAR with dual-transmit and multiple-receive linear array antennas based on time and waveform diversity
Author :
Lei, Du ; Yanping, Wang ; Wen, Hong ; Yirong, Wu
Author_Institution :
Nat. Key Lab. of Microwave Imaging Technol. (MITL), Beijing, China
Abstract :
The dual-transmit and multiple-receive (DTMR) configuration of linear array antennas (LAA) is firstly introduced in downward-looking 3D-SAR imaging in this paper. The geometrical model and the signal model based on the principle of time diversity and waveform diversity are analyzed. The three-dimensional imaging processing algorithm for downward-looking 3D-SAR with DTMR-LAA is given via a stepwise mathematical derivation and the analytic expression of 3D PSF after 3D imaging processing is presented. The simulation results confirm the feasibility of the downward-looking 3D-SAR with DTMR-LAA imaging concept.
Keywords :
linear antenna arrays; radar imaging; synthetic aperture radar; 3D imaging processing algorithm; downward-looking 3D-SAR; geometrical model; linear array antennas; signal model; stepwise mathematical derivation; time diversity; waveform diversity; Azimuth; Geometry; High-resolution imaging; Image resolution; Linear antenna arrays; Microwave antenna arrays; Receiving antennas; Signal resolution; Spatial resolution; Transmitting antennas; 3DSAR; downward-looking; dual-transmit and multiple-receive; linear array antennas;
Conference_Titel :
Synthetic Aperture Radar, 2009. APSAR 2009. 2nd Asian-Pacific Conference on
Conference_Location :
Xian, Shanxi
Print_ISBN :
978-1-4244-2731-4
Electronic_ISBN :
978-1-4244-2732-1
DOI :
10.1109/APSAR.2009.5374353
