A real-time motion compensation method for ultra-wideband synthetic aperture radar
A technology of synthetic aperture radar and motion compensation, applied in the field of UWBSAR signal processing
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[0070] The specific implementation manners of the present invention will be further explained in detail below in conjunction with the accompanying drawings.
[0071] figure 1 It is a flow chart of the UWB SAR real-time motion compensation method based on single-point GPS. During UWBSAR imaging, press the time-of-flight to T a Segmentation, if the current moment is the starting point of the imaging synthetic aperture, then establish the imaging coordinate system, if not, proceed to figure 1 The steps are as follows: the first step is to eliminate the single-point GPS position jump error; the second step is to calculate the translational motion error according to the single-point GPS positioning information. The third step is to calculate the heading speed error. For the specific method of real-time PRF adjustment adopted in the present invention, see the literature: Li Jianyang et al., "UWB SAR real-time PRF adjustment", Modern Radar, 2009, Volume 31, No. 4, p34-p37; The fou...
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