Imaging In Multi-Dimensions And Monopulse Processing Concepts And Practice.

George M. Green; Gary A. Killen

doi:10.1117/12.960508

14 August 1989 Imaging In Multi-Dimensions And Monopulse Processing Concepts And Practice.

George M. Green, Gary A. Killen

Proceedings Volume 1101, Millimeter Wave and Synthetic Aperture Radar; (1989) https://doi.org/10.1117/12.960508
Event: SPIE 1989 Technical Symposium on Aerospace Sensing, 1989, Orlando, FL, United States

Abstract

With the advent of wideband transmitters, receivers, and dual-polarization, monopulse antennas, it is possible to image radar targets in several dimensions simultaneously. Wideband, frequency agility radar processing makes it possible to image a point scatterer in the range dimension. Coupling relative target rotation pnd frequency agility, it is possible to image a point scatterer in two orthogonal dimensions (range, cross-range). Dual channel monopulse processing coupled with wideband frequency agility makes it possible to measure the spatial position of an isolated point scatterer (range, azimuth, elevation). The complete electromagnetic characterization of the target (at an aspect angle) is accomplished by measuring the target's four polarization responses in a polarization basis. Measuring all target aspects is accomplished by continuous turntable measurements. Uniting frequency agility, polarization agility, monopulse processing, and angular processing, the target may be imaged in one, two, and three spatial dimensions simultaneously for each of the polarization pairs. One-dimensional imaging is called high-range resolution (HRR) processing; two-dimensional imaging is either Synthetic Aperture Radar (SAR) or Inverse Synthetic Aperture Radar (ISAR); three-dimensional imaging is monopulse imaging.

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George M. Green and Gary A. Killen "Imaging In Multi-Dimensions And Monopulse Processing Concepts And Practice.", Proc. SPIE 1101, Millimeter Wave and Synthetic Aperture Radar, (14 August 1989); https://doi.org/10.1117/12.960508

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KEYWORDS

Radar

Polarization

Signal processing

Image processing

Synthetic aperture radar

Doppler effect

Extremely high frequency

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