The invention provides a method for reconstructing target three-dimensional scattering center
inverse synthetic aperture radar. The method for reconstructing the target three-dimensional scattering center of the
inverse synthetic aperture radar comprises the following steps: conducting continuous
image formation on echo data after motion compensation so as to obtain an ISAR two-dimensional
image sequence; respectively conducting horizontal scaling and vertical scaling on the
information storage and retrieval (ISAR) two-dimensional
image sequence so as to obtain a position coordinate of the scattering center; and respectively extracting a position coordinate of the scattering center in an ISAR two-dimensional image of each frame, calculating a
displacement velocity field of every two adjacent frames of the scattering center of the ISAR two-dimensional image, combining
projection equation and target motion equation of an
orthographic projection model so as to obtain estimated values of a third dimension coordinate by combining a
projection equation and a target motion equation of an
orthographic projection model, and averaging multiple estimated values to obtain the final third dimension coordinate. Therefore, reconstruction of the target three-dimensional scattering center is completed directly. The method for reconstructing the target three-dimensional scattering center of the
inverse synthetic aperture radar does not need cost of extra
system hardware, can distinguish scattering centers with different heights in the same distance and
position resolution unit, does not need to utilize
prior information such as observation perspective of the
radar, and has relatively small calculating amount.