Star machine united SAR (Synthetic Aperture Radar) two-dimensional frequency domain imaging method based on airspace domain expansion
A two-dimensional frequency domain, imaging method technology, applied in the field of radar, can solve the problems of tedious derivation of spectrum, inability to express the spatial characteristics of scattering points explicitly, and complexity.
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[0100] The present invention mainly adopts the method of simulation experiment for verification, and all steps and conclusions are verified correctly on MATLAB7.0. The specific implementation steps are as follows:
[0101] Step 1. Use computer simulation to generate simulation data of satellite-machine joint bistatic synthetic aperture radar. The system parameters required for simulation are shown in Figure 3. And define the synthetic aperture radar imaging space and initialize the imaging system parameters;
[0102] Select the unit vector parallel to the speed direction of the satellite platform and in the ground plane as the first coordinate base of the synthetic aperture radar imaging space In addition, select the second coordinate base of the synthetic aperture radar imaging space
[0103] Initialize satellite relative ground velocity vector Receive platform speed vector, that is, airplane speed vector Launch platform initial position vector Receiving platform initial posit...
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