Computer Simulation Of ISAR Radar Imaging Based On Distance Migration Correction

In inverse synthetic aperture radar target detection process,Assuming a target along a straight line trajectory,It can be equivalent to the target itself during this time with a translational motion around the centroid of the rotation of a very small degree.Turn resulted from the radar scatterers changes,Change the resolution will generate more than the distance from the migration phenomenon occurs imaging blur.This article first introduces the basic principles of inverse synthetic aperture radar imaging,Obtain the data under varis conditions,and complete the target imaging through simulation expermengt,Analyzed the inverse synthetic aperture radar imaging characteristics.Describes the imaging model and the distance turntable causes of migration,Put forward the application of Dechirp to realize the ISAR imaging,Conducting detailed push and validation for relevant algorithm,This is the diffierence between this artical and the currt mainstream algorithm.After thi,Derived the process from launch to receiving in detail on the basis of establishing radar model,and make each step studied carefully to get reliable data and images,Compared to other experiments.Finally,for the rotation caused by the migration component,Pushed the process of correcting and imaging.The innovation of this part lies in the correction algorithm of the rotational component.This part is the theoretical proof of the viewpoint of this paper,and also the demonstration of the data comparison result.