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Compressed Sensing (CS) theory provides great possibilities for resolving problems associated with traditional high resolution radar, such as high sampling rate, too many data and difficulties of real time processing. Sensing by random convolution is a universally efficient data acquisition strategy and easy to realize. This paper focuses on radar imaging technique based on CS by random convolution,...
Fast sampling of wideband RF signal and real time processing of vast data are great difficulties in the engineering implementation of deception jamming to ISAR. This paper proposes a sort of Sub-Nyquist Sampling-Based Method for Jamming ISAR Systems. First introduces the deception jamming technique based on false target for ISAR. Then investigates the jamming principle of sub-Nyquist sampling modulation...
There is an increasing performance demand in receiving system of synthetic aperture radar (SAR) in recent days. Different kinds of digital quadrature demodulation (DQD) algorithms have come down to the filter design. A novel DQD filter based on the shifted matched filter is introduced in this paper. The performance of different filters is evaluated based on simulated echo data of one point target...
This paper presents a novel approach for missile-borne SAR imaging with the dive trajectory using a refined omega-K algorithm (??KA) to improve the focus performance. Based on a range model under accelerated dive trajectory, the characteristics of echo signal and two incidental problems with nonlinear dive aperture are analyzed. Then the modified ??KA with acceleration is designed to accommodate the...
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