基于稀疏反卷积的多径辅助海底畸变阵列原位几何校正方法、程序、设备及存储介质
By combining sparse deconvolution and explicit outlier absorption mechanisms, the problems of poor vertical observability and multipath spurious peak interference of seabed acoustic arrays in shallow water environments are solved, and high-precision in-situ geometric correction of seabed arrays is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HARBIN ENGINEERING UNIVERSITY SANYA NANHAI INNOVATION & DEVELOPMENT BASE
- Filing Date
- 2026-05-15
- Publication Date
- 2026-07-17
AI Technical Summary
Existing underwater acoustic arrays suffer from poor vertical observability in shallow water environments, difficulty in distinguishing overlapping multipath components, and instability in geometric solutions caused by coarse outliers from multipath spurious peaks and false reflections, making it difficult to achieve high-precision in-situ geometric correction.
By employing sparse deconvolution techniques combined with norm regularization and alternating direction multiplier method (ADMM), high-resolution time delay is extracted at the front end and an explicit outlier absorption mechanism is embedded at the back end to construct a nonlinear geometric optimization objective function. The correction of array element positions is achieved through alternating solution.
It breaks through the resolution limit of traditional matched filtering, effectively separates multipath impulse responses in complex shallow water environments, suppresses spurious peak interference, maintains sub-meter level three-dimensional positioning accuracy and robustness, and avoids algorithm divergence.
Smart Images
Figure CN122194059B_ABST