一种星载单光子激光雷达测深信号提取方法、装置及设备
By combining the elevation distribution and density characteristics of photons on the water surface, and employing photon elevation iterative clustering and segmentation and multi-scale filtering strategies, the problem of poor photon extraction by spaceborne single-photon lidar in complex marine environments was solved, and high-precision water depth information acquisition was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WUHAN UNIV
- Filing Date
- 2026-05-19
- Publication Date
- 2026-07-17
AI Technical Summary
Existing spaceborne single-photon lidars have poor photon extraction quality in underwater topographic surveying, especially in complex marine environments where they struggle to accurately extract signal photons from the water surface and seabed, resulting in insufficient depth measurement accuracy.
By combining the elevation distribution and density characteristics of surface photons, a photon elevation iterative clustering and local density filtering method is used to separate surface signal photons. Then, multi-scale robust regression and multi-level filtering strategies are used to extract bottom signal photons. Combined with tidal correction technology, accurate depth sounding signals are obtained.
This method improves the accuracy and completeness of surface photon extraction, accurately identifies bottom signal photons, and solves the problem of poor photon extraction quality in existing technologies. It provides a low-cost, high-precision method for acquiring water depth information in the open sea or shallow waters that are difficult to access.
Smart Images
Figure CN122218656B_ABST