一种基于时频特征匹配的碰撞跳频信号分选方法
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NANJING UNIV OF POSTS & TELECOMM
- Filing Date
- 2026-04-30
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies lack accuracy in collision frequency hopping signal sorting scenarios, especially in traditional template matching methods, which are prone to erroneous and duplicate matching, resulting in missing frequency hopping sequences and affecting the reliability of spectrum monitoring and analysis.
A time-frequency feature matching-based method is adopted, which uses adaptive binarization, opening operation, connected component decision, parameter extraction and DBSCAN clustering, combined with fill factor, overlap rate and time interval constraints, to achieve accurate separation and classification of collision frequency hopping signals.
It improves the accuracy of collision frequency hopping signal sorting, avoids incorrect and repeated matching, preserves a more complete frequency hopping sequence, and enhances the reliability of spectrum monitoring.
Smart Images
Figure CN122137455B_ABST