Three-dimensional instantaneous imaging method for space high-speed maneuvering target

Abstract

The invention provides a three-dimensional instantaneous imaging method for a space high-speed maneuvering target, and the method achieves the imaging through a single pulse period signal, a problem that the signal cannot be subjected to phase-coherent accumulation caused by the maneuvering characteristic of the high-maneuvering target is solved, and the three-dimensional instantaneous imaging of the high-speed maneuvering target is realized. Therefore, the problem of poor imaging precision caused by mismatching of an existing sparse reconstruction algorithm in an actual scene can be solved, and the imaging algorithm has a real-time processing capability; meanwhile, compared with a traditional sparse reconstruction algorithm, the method based on the sparse Bayesian learning theory has the advantages that target statistical information is introduced, the information amount is increased, and the three-dimensional image reconstruction precision is high.

Description

technical field [0001] The invention belongs to the technical field of space target detection, and in particular relates to a three-dimensional instantaneous imaging method for a space high-speed maneuvering target. Background technique [0002] With the increasing level of modern space science and technology, new types of highly maneuverable space vehicles have become a new direction for the development of the space forces of major powers. This type of target has a complex motion pattern and strong high-speed maneuverability, which poses a huge challenge to the detection and measurement of space targets: on the one hand, it is difficult for the existing technical system to include the detection and stable tracking of high-speed maneuvering targets; on the other hand, the existing observation equipment Without fast imaging capability, dynamic measurement of target characteristics cannot be realized. Existing ground radar detection has relatively large limitations, which are...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above problems, the present invention provides a three-dimensional instantaneous imaging method for high-speed maneuvering targets in space, which can avoid the problem that signals cannot be coherently accumulated due to the maneuvering characteristics of high-speed maneuvering targets, and realize three-dimensional instantaneous imaging of high-speed maneuvering targets

Images