Title :
High resolution radar imaging with small subarrays
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
The autoregressive spectrum estimation technique is applied to far field array radar imaging. Due to the superresolution capability of this technique, high resolution radar images can be obtained with an incoherent combination of images formed by small subarrays. This solves the problem of phase calibration in large-array imaging systems. The detectability of the target edge is improved through an increase in the signal spectral response. A set of bistatic radar experimental data for a 200-element array is used to test this imaging technique.<>
Keywords :
antenna arrays; picture processing; radar antennas; radar applications; spectral analysis; autoregressive spectrum estimation; bistatic radar; experimental data; far field array radar imaging; high resolution radar images; high resolution radar imaging; signal spectral response; small subarrays; superresolution; Bistatic radar; Calibration; High-resolution imaging; Image edge detection; Image resolution; Radar detection; Radar imaging; Signal resolution; Spectral analysis; Testing;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1990. AP-S. Merging Technologies for the 90's. Digest.
Conference_Location :
Dallas, TX, USA
DOI :
10.1109/APS.1990.115218
