Title :
Superresolution ISAR imaging by 2-D complex asymmetric half-plane lattice predictors
Author :
Erer, I. ; Kartal, M. ; Kayran, A.H.
Author_Institution :
Fac. of the Electron. & Electr. Eng., Istanbul Tech. Univ., Turkey
Abstract :
An efficient algorithm to obtain high resolution ISAR images in the case of limited frequency band and small angular section is presented. The method is based on the 2-D autoregressive asymmetric half-plane modeling of the backscattered data using a 2-D complex lattice predictor. The locations of the scattering centers are determined by the zeroes of the transfer function of the prediction error filter. A simulation example is included to show the performance of the algorithm
Keywords :
autoregressive processes; image resolution; lattice filters; prediction theory; radar imaging; radar resolution; synthetic aperture radar; transfer functions; 2-D autoregressive asymmetric half-plane modeling; 2-D complex lattice predictor; 2D complex asymmetric half-plane lattice predictors; angular section; backscattered data; frequency band; high resolution ISAR images; prediction error filter; scattering centers; superresolution ISAR imaging; transfer function; Differential equations; Filters; Frequency; Image resolution; Indexing; Lattices; Noise measurement; Predictive models; Radar imaging; Radar scattering;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-7031-7
DOI :
10.1109/IGARSS.2001.977971
