Double-base foresight high-mobility platform SAR imaging method based on echo simulation
A double-base look-ahead and echo simulation technology, which is applied in radio wave reflection/re-radiation, radio wave measurement system, utilization of re-radiation, etc., to achieve high computing efficiency and high computing efficiency
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[0036] refer to figure 1 , is a schematic flow chart of a bibase forward looking height maneuvering platform SAR imaging method based on echo simulation of the present invention, this kind of echo simulation based bibase forward looking height maneuvering platform SAR imaging method comprises the following steps:
[0037] Step 1: Establish the motion geometry configuration of the bistatic forward-looking high maneuvering platform SAR, and obtain the instantaneous bistatic slant distance expression R between the receiver and the point target P bf (t m ), and then get the SAR time-domain echo signal of the point target P Among them, P is any point target in the forward-looking target area of the receiver, Indicates fast time, t m Indicates slow time.
[0038] The specific sub-steps of step 1 are:
[0039] 1.1 Reference figure 2 , to establish the kinematic geometric configuration of the bistatic forward-looking high maneuvering platform SAR, where O is the origin of t...
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