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These are three sets of simulated echo data generated by Matlab. The first set of echo data comes from a surface target with a size comparable to a 2-D MIMO array, but with a center point offset from the array. The second group contains three echo data from point targets. The first packet is a point target within the physical size of the array, the second packet is a point target outside the physical size of the array, and the third packet is the sum of the first two packets.
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The dataset corresponding to the measurements performed in the article "Freehand System for Probe-Fed Antenna Diagnostics by Means of Amplitude-Only Acquisitions" is provided. In this work, a freehand acquisition system is used to characterize an integrated antenna fed by a GSG probe by means of amplitude-only measurements, with phase retrieval based on an indirect holography technique for broadband antennas. Spatial filtering and time-gating techniques are applied to eliminate the effect of the feeding probe.
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