Title :
A new method for ISAR motion compensation
Author :
Lu, Y.H. ; Zhang, C.B. ; Yeo, T.S. ; Ng, C.S. ; Li, Y.
Author_Institution :
Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore
Abstract :
A novel motion compensation method for ISAR imaging using a combination of Vernier processing and Wigner-Ville distribution (WVD) analysis is presented. It employs stepped-chirp pulse as the transmission signal and takes advantage of the special Vernier processing approach. Computer simulation results show that the proposed method is superior to the conventional centroid tracking method. The performance of the proposed method in the presence of white Gaussian noise is also investigated
Keywords :
geophysical signal processing; geophysical techniques; radar imaging; remote sensing by radar; spaceborne radar; synthetic aperture radar; ISAR; SAR; Vernier processing; Wigner-Ville distribution; geophysical measurement technique; inverse synthetic aperture radar; land surface; method; motion compensation; radar imaging; radar remote sensing; satellite remote sensing; spaceborne radar; stepped-chirp pulse; terrain mapping; transmission signal; Computer simulation; Delay; Frequency estimation; Motion compensation; Motion estimation; Phase estimation; Radar; Signal processing; Space vector pulse width modulation; Target tracking;
Conference_Titel :
Geoscience and Remote Sensing Symposium Proceedings, 1998. IGARSS '98. 1998 IEEE International
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-4403-0
DOI :
10.1109/IGARSS.1998.699542
