Method for motion compensation of stepped-frequency radar images using PSO

摘要

the present invention, the target to the transmitter and reflected from the target step frequency radar signal received by the radar, acquiring the image, but, in order to correct the phase error due to motion in the target, it sets the entropy of the radar images as a cost function, and applies the PSO (Particle Swarm Optimization) method as a method for minimizing the cost function, to get the final swing the compensation radar images, and provides step-frequency radar images fluctuation compensation method using the PSO. ; According to the oscillating frequency compensation method disclosed Step radar images, acquired step frequency radar by applying the method with respect to the image based on the PSO performing a shaking motion compensated by the movement of the target, there is an advantage that the phase error can be obtained a high quality radar image is removed. In addition, a plurality of non-PSO are optimized to work together with the search for ways of PSOI (Particle Swarm Optimization with an Island model) techniques applied to the case, compensate fluctuations in performance can be further improved it, more crisp, sharp can get a radar image.