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首页> 美国政府科技报告 >Signature Correlation Study of Ground Target VHF/UHF ISAR Imagery
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Signature Correlation Study of Ground Target VHF/UHF ISAR Imagery

机译：地面目标VHF / UHF IsaR图像的特征相关研究

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VV and HH-polarized radar signatures of several ground targets were acquired in the VHF/UHF band (171- 342 MHz) by using 1/35th scale models and an indoor radar range operating from 6 to 12 GHz. Data were processed into medianized radar cross sections as well as focused, ISAR imagery. Measurement validation was confirmed by comparing the radar cross section of a test object with a method of moments radar cross section prediction code. The signatures of several vehicles from three vehicle classes (tanks, trunks, and TELs) were measured and a signature cross correlation study was performed. The VHF/UHF band is currently being exploited for its foliage penetration ability, however, the coarse image resolution which results from the relatively long radar wavelengths suggests a more challenging target recognition problem. One of the study's goals was to determine the amount of unique signature content in VHF/UHF ISAR imagery of military ground vehicles. Open-field signatures are compared with each other as well as with simplified shapes of similar size. Signatures were also acquired on one vehicle in a variety of configurations to determine the impact of minor target variations on the signature content at these frequencies.

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