一种双通道雷达前视成像方法

By employing a dual-channel radar forward-looking imaging method, and through echo data processing and a regularized iterative adaptive approach, the problems of left/right blurring and low resolution in dual-channel radar forward-looking imaging were solved, achieving higher imaging performance.

CN118938224BActive Publication Date: 2026-07-17UNIV OF ELECTRONICS SCI & TECH OF CHINA

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
UNIV OF ELECTRONICS SCI & TECH OF CHINA
Filing Date
2024-09-11
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Dual-channel radar forward-looking imaging suffers from poor performance in solving left/right ambiguity and low imaging resolution in areas near the flight path.

Method used

A dual-channel forward-looking radar imaging method is adopted. By acquiring echo data, range pulse compression and range migration correction are performed to construct the echo domain time-frequency spatial steering matrix. A regularized iterative adaptive method is used to solve the linear mapping equation to achieve left/right ambiguity resolution and super-resolution imaging of dual-channel forward-looking SAR.

Benefits of technology

Under the same channel resource conditions, better imaging performance was achieved, improving the deblurring and super-resolution imaging effects of dual-channel forward-looking SAR.

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Abstract

本发明公开了一种双通道雷达前视成像方法,首先获取待成像区域的回波数据,对获取的数据进行距离向脉冲压缩和距离徙动校正,并构造考虑时频空信息的导向矩阵,建立回波与原始场景之间的线性方程,然后采用正则化迭代自适应方法求解该方程,从而同时实现双通道前视SAR解左 / 右模糊和超分辨率成像。本发明的方法在回波域中同时直接实现双通道前视SAR左 / 右解模糊和超分辨率成像,在相同的信道资源条件下,可以获得比现有图像域方法更好的成像性能。
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