High-frame-rate distributed SAR moving target imaging method
The invention discloses a high-frame-rate distributed synthetic aperture radar (SAR) moving target imaging method, which comprises the following steps of: performing equivalent phase center processing on an imaging moving target by using double stations in a high-frame-rate distributed SAR radar to...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a high-frame-rate distributed synthetic aperture radar (SAR) moving target imaging method, which comprises the following steps of: performing equivalent phase center processing on an imaging moving target by using double stations in a high-frame-rate distributed SAR radar to obtain moving target equivalent sub-aperture echoes; estimating two-dimensional motion parameters of the moving target; respectively constructing phase compensation functions for static and motion components, and eliminating or reducing the influence of the motion component of the moving target; estimating the complete echo of the moving target under the high-frame-rate distributed configuration; and performing imaging focusing on the moving target by using the complete echo estimation value, and outputting an image. According to the method, the possibility of the high-frame-rate distributed SAR configuration to the imaging of the moving target is verified, and a new means is provided for the observation and imagin |
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