Maneuvering target end-to-end ISAR imaging method and system based on joint PSO and TPRS-NUFFT

The invention provides a maneuvering target end-to-end ISAR (Inverse Synthetic Aperture Radar) imaging method and system based on joint PSO (Particle Swarm Optimization) and TPRS-NUFFT. The maneuvering target end-to-end ISAR imaging method comprises the following steps: S1, acquiring target baseband echo signal data after range pulse pressure; s2, carrying out FFT (Fast Fourier Transform) along a distance dimension, and converting target baseband echo signal data into a distance frequency domain-slow time domain to obtain target echo signal data; s3, constructing a translation compensation function, and performing translation compensation to obtain echo data; s4, carrying out TPRS-NUFFT processing on the echo data to obtain new echo data; s5, carrying out IFFT (Inverse Fast Fourier Transform) on the new echo data along a distance dimension to obtain an ISAR imaging result; and S6, estimating moving target parameters through a PSO algorithm, and completing ISAR imaging. According to the method, through TPRS-NU