The application discloses a
radar detection and multi-dimensional parameter
estimation method and
system for high-maneuvering group targets, and the method comprises the following steps: constructing a
radar echo signal model of the high-maneuvering group targets; obtaining a
pulse compression echo signal of the high-maneuvering group targets by using a
pulse compression technology; performing
signal energy coherent accumulation through second-order
phase compensation, slow-time dimension non-uniform
fast Fourier transform and distance dimension inverse
fast Fourier transform, so as to realize group target detection and distance-velocity-acceleration joint coarse
estimation; constructing an over-complete dictionary according to the multi-dimensional parameter coarse
estimation result, and performing sparse representation on the
pulse compression signal of the high-maneuvering group targets; and adopting a sparse Bayesian learning method to perform sparse reconstruction on distance-velocity-acceleration estimation space of each
target signal in the group, so as to obtain fine estimation results of multi-dimensional parameters of each target. The application can quickly detect the high-maneuvering group targets without multi-dimensional search, realizes coarse-to-fine estimation of multi-dimensional parameters of each target, and takes into account estimation accuracy and operation efficiency.