Sparse Aperture Radar Imaging
نویسندگان
چکیده
Radar data collected from airplanes in real time is generally sparse except in very special cases. We demonstrate several tools and approaches to form images in some examples.
منابع مشابه
Region-Enhanced Passive Radar Imaging
We adapt and apply a recently-developed region-enhanced synthetic aperture radar (SAR) image reconstruction technique to the problem of passive radar imaging. One goal in passive radar imaging is to form images of aircraft using signals transmitted by commercial radio and television stations that are reflected from the objects of interest. This involves reconstructing an image from sparse sampl...
متن کاملInverse synthetic aperture radar imaging based on sparse signal processing
Based on the measurement model of inverse synthetic aperture radar (ISAR) within a small aspect sector, an imaging method was presented with the application of sparse signal processing. This method can form higher resolution inverse synthetic aperture radar images from compensating incomplete measured data, and improves the clarity of the images and makes the feature structure much more clear, ...
متن کاملBayesian Angular Superresolution Algorithm for Real-Aperture Imaging in Forward-Looking Radar
Abstract: In real aperture imaging, the limited azimuth angular resolution seriously restricts the applications of this imaging system. This report presents a maximum a posteriori (MAP) approach based on the Bayesian framework for high angular resolution of real aperture radar. First, Rayleigh statistic and the lq norm (for 0 < q ≤ 1) sparse constraint are considered to express the clutter prop...
متن کاملFusion Algorithm of Optical Images and Sar with Svt and Sparse Representation
Due to the different imaging mechanism of optical image and Synthetic Aperture Radar (SAR) image, they have the large different characteristics between the images, so fusing optical image and SAR image with image fusion technology could complement advantages and be able to better interpret the scenes information. A fusion algorithm of Synthetic Aperture Radar and optical image with fast sparse ...
متن کاملApply Super-SVA to SAR Imaging with Both Aperture Gaps and Bandwidth Gaps
Synthetic aperture radar (SAR) imaging usually requires echo data collected continuously pulse by pulse with certain bandwidth. However in real situation, data collection or part of signal spectrum can be interrupted due to various reasons, i.e. there will be gaps in spatial spectrum. In this case we need to find ways to fill out the resulted gaps and get image with defined resolution. In this ...
متن کامل