一种磁异探测的弱磁信号识别系统及其识别方法
By combining array magnetic excitation and induction coil modules with signal processing technology, the transmission frequency is adaptively adjusted, solving the signal interference problem in magnetic anomaly detection and achieving effective underground metal identification and depth detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHONGBEI UNIV
- Filing Date
- 2023-04-14
- Publication Date
- 2026-07-17
AI Technical Summary
Under geomagnetic conditions, during magnetic anomaly detection, minute magnetic anomaly signals are interfered with by the environmental magnetic field and high-frequency noise, making them difficult to extract and identify effectively.
By employing an array magnetic excitation transmitting module and an induction coil module, combined with signal differential, low-pass filtering and metal recognition modules, and adaptively adjusting the transmitting frequency, magnetic anomaly detection is performed using transient electromagnetic methods to eliminate interference from stable geomagnetic fields and high-frequency noise, thereby enhancing the identification of magnetic anomaly signals.
It enables the effective identification of underground metallic magnetic anomalies without damaging the detected object or affecting the environment, increasing the detection area and depth, and determining the object's location.
Smart Images
Figure CN116540312B_ABST