Title :
Simulated DPCA performance for dual-channel SAR processing
Author :
Ng, W.E. ; Zhang, C.B. ; Lu, Y.H. ; Yeo, T.S.
Author_Institution :
Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore
Abstract :
Interests in slow target imaging lead us to the synthetic aperture radar (SAR) simulation and performance evaluation of the dual-channel displaced phase center antenna (DPCA) clutter suppression technique for SAR processing. The Doppler chirp signature of a moving target signal is altered by the DPCA and has to be restored by a correction factor. Suppressed clutter powers in signal-to-clutter ratios (SCR) the improvement factors (IF) are measured in this numerical experiment and presented. This investigation offers a guide to the SCR requirement on the next-in-line processors such as parameter estimation
Keywords :
Doppler radar; image motion analysis; interference suppression; radar antennas; radar clutter; radar imaging; synthetic aperture radar; Doppler chirp signature; clutter suppression technique; correction factor; dual-channel SAR processing; dual-channel displaced phase center antenna; improvement factors; moving target signal; parameter estimation; performance; signal-to-clutter ratios; simulated DPCA performance; slow target imaging; suppressed clutter powers; synthetic aperture radar; Aperture antennas; Clutter; Degradation; High-resolution imaging; Motion estimation; Parameter estimation; Radar detection; Receiving antennas; Synthetic aperture radar; Thyristors;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1999. IGARSS '99 Proceedings. IEEE 1999 International
Conference_Location :
Hamburg
Print_ISBN :
0-7803-5207-6
DOI :
10.1109/IGARSS.1999.773560
