Calibration method for onboard hybrid along-track and cross-track interference synthetic aperture radar system
An interferometric synthetic aperture and radar system technology, which is applied in the field of airborne hybrid on-track-cross-track interferometric synthetic aperture radar calibration, which can solve the problem that the baseline vector model is complex, cannot fully and correctly describe the baseline characteristics, and cannot cover AT-XTInSAR. System to be calibrated parameters and other problems, to avoid the effect of formula calculation
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[0026] The invention provides an airborne hybrid along-track-cross-track interference synthetic aperture radar calibration method. The method establishes a new baseline vector model for the airborne hybrid along-track-cross-track interference synthetic aperture radar. According to the model and the carrier The attitude angle information of the aircraft can describe the baseline vector of the hybrid interferometric SAR system at any time; on the basis of the new baseline vector model, the parameters to be calibrated for the hybrid interferometric SAR system have been modified, and an airborne hybrid along-track- A calibration method for cross-track interferometric synthetic aperture radar. This method realizes the calibration of the baseline length and two baseline angles by calibrating the baseline component at a certain time, avoiding complicated formula calculations and making it easier to implement.
[0027] figure 1 is the hybrid baseline InSAR baseline vector model in the...
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