Abstract
The authors have developed a target speed estimation method for an ultra-wideband radar imaging system. The method is able to generate a focused image even if the target is moving at an unknown speed during the measurement, where many other techniques produce blurred images. Our technique uses the cross-range blurriness as a metric to measure the image focusing, and select the best-focused image among many generated for various candidate speeds. The target speed is estimated by finding the minimum cross-range blurriness, and the method compensates for the estimated speed to generate a focused three-dimensional image automatically. By exploiting the fact that the head size differs relatively little among individuals, we detected the head position in a radar image, and calculated the blurriness around the region to evaluate the focuse of the image. The speed estimation method is applied to the measurement of a mannequin on a moving stage, and it is shown that the target speed is estimated with an accuracy of 5%. Application results show that the developed technique can estimate target speeds accurately, and produce an image with sufficient resolution for the intended application.
Original language | English |
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Title of host publication | Proceedings of PIERS 2015 |
Publisher | Electromagnetics Academy |
Pages | 1922-1925 |
Number of pages | 4 |
ISBN (Electronic) | 978-193414230-1 |
Publication status | Published - Jan 2015 |
Event | Progress in Electromagnetics Research Symposium, PIERS 2015 - Prague, Czech Republic Duration: 6 Jul 2015 → 9 Jul 2015 |
Conference
Conference | Progress in Electromagnetics Research Symposium, PIERS 2015 |
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Abbreviated title | PIERS |
Country/Territory | Czech Republic |
City | Prague |
Period | 6/07/15 → 9/07/15 |