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An algorithm based on compressive sensing (CS) is proposed for synthetic aperture radar (SAR) imaging of moving targets. The received echo is decomposed into the sum of many basis sub-signals that are generated by discretizing the target spatial domain and velocity domain and synthesizing the SAR received data for every discretized spatial position and velocity candidate. In this way, the SAR imaging...
In conventional ISAR system, when the requested resolution of radar is high, while the size of target is large, it will cause the Migration Through Resolution Cell(MTRC), it will also exist the same problems in Bistatic ISAR systems. This paper analyzes and discusses the reason of causing MTRC particularly in the module of Bistatic ISAR, and compares it with the situation in Mono ISAR systems. And...
This paper describes a 3-D imaging technique employing a near-field inverse synthetic aperture radar, operated in a multi-static antenna configuration, to provide high resolution tomographic reconstructions of highly unstructured targets. The technique is based on spatially-variant Fourier-domain matched filters corresponding to spherical-targets of varying radius in a cylindrical-polar coordinate...
Multiple-input-multiple-output (MIMO) radar is an emerging technology that has significant potential for advancing the state-of-the-art of modern radar. When orthogonal waveforms are transmitted, with M+N (N transmit and M receive) antennas, an MN-element filled virtual array can be obtained. To successfully utilize such an array for high-resolution MIMO radar imaging, constant-modulus transmit signal...
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