SAR imaging using fully random bandlimited signals

Author

Garmatyuk, D.S. ; Narayanan, R.M.

Author_Institution

Dept. of Electr. Eng., Nebraska Univ., Lincoln, NE, USA

Volume

4

fYear

2000

fDate

16-21 July 2000

Firstpage

1948

Abstract

A coherent ultrawideband (UWB) random noise synthetic aperture radar (SAR) has been developed and tested at the University of Nebraska. It has been experimentally shown that this type of radar is capable of extracting the phase and the amplitude of the backscattered signal, thus enabling us to create target profiles in the frequency domain. The use of fully random waveforms (bandlimited noise) as the transmit signal is analyzed. A UWB signal model is developed and radar signal processing is simulated to yield the statistical characteristics of image formation using stochastic waveforms. The influence of the UWB signal characteristics on the image quality is estimated and represented graphically.

Keywords

Gaussian distribution; backscatter; bandlimited signals; feature extraction; frequency-domain analysis; radar imaging; random noise; statistical analysis; stochastic processes; synthetic aperture radar; Gaussian-distributed amplitude; SAR imaging; UWB signal characteristics; UWB signal model; University of Nebraska; amplitude extraction; backscattered signal; bandlimited noise; coherent ultrawideband random noise SAR; experiment; frequency domain; image formation; image quality; phase extraction; radar signal processing; random bandlimited signals; random waveforms; statistical characteristics; stochastic waveforms; synthetic aperture radar; target profiles; transmit signal; Frequency domain analysis; Radar imaging; Radar polarimetry; Radar signal processing; Signal analysis; Signal processing; Stochastic resonance; Synthetic aperture radar; Testing; Ultra wideband technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2000. IEEE

Conference_Location

Salt Lake City, UT, USA

Print_ISBN

0-7803-6369-8

Type

conf

DOI

10.1109/APS.2000.874872

Filename

874872