一种SA-ISAR参数化平动补偿方法
By constructing a translational parameter space and a compensation function, the problem of the unconsidered RVP term in SA-ISAR imaging was solved, and the translational parameter estimation of highly maneuvering targets and the accurate acquisition of ISAR images were realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HARBIN INST OF TECH
- Filing Date
- 2023-06-01
- Publication Date
- 2026-07-17
AI Technical Summary
Existing SA-ISAR imaging methods fail to effectively consider the residual phase term (RVP) in the echo, resulting in the inability to obtain accurate ISAR images of the target, especially when the target's rotational angular velocity changes.
A translational parameter space is constructed, and the echo is compensated by constructing a translational compensation function. The translational parameters of the target are estimated by calculating the average one-dimensional range image entropy, and finally an accurate ISAR image is obtained.
The translational parameters of highly maneuverable translational targets were estimated, eliminating the influence of the RVP term on the estimation of target translational parameters and obtaining high-quality ISAR images.
Smart Images
Figure CN116879852B_ABST