一种基于干扰认知的复合干扰抑制方法
By employing a two-step suppression method based on interference cognition, and utilizing direction estimation and transfer learning techniques, the problem of compound interference when the main lobe interference and the target signal are close together is solved. This achieves effective suppression of the main lobe interference and preservation of the target signal, thereby improving the detection and tracking performance of the radar system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- UNIV OF ELECTRONICS SCI & TECH OF CHINA
- Filing Date
- 2023-09-01
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies struggle to effectively suppress composite interference when the main lobe interference and the target signal are close together, especially when incident at similar angles, which affects the detection and tracking performance of the radar system.
A two-step suppression method based on interference cognition is adopted. First, sidelobe interference is suppressed by direction estimation and orthogonal projection. Then, main lobe interference features are identified and the interference signal is reconstructed and canceled through transfer learning, thereby suppressing the main lobe interference.
While ensuring target detection, it effectively suppresses main lobe interference, improves the signal-to-interference-plus-noise ratio by 6dB-10dB, and avoids target signal attenuation caused by existing methods.
Smart Images
Figure CN117289215B_ABST