基于UUV磁传感器阵列的水下弱磁异常探测方法研究

结合我国海洋开发和海洋国土安全的需求，针对发展无人水下航行器（UUV）在水下弱磁异常信息探测方面的核心科学问题和关键技术手段，本项目拟开展基于UUV磁传感器阵列的水下弱磁异常探测方法与技术研究。在UUV传感器阵列方面，研究磁传感器阵列的基线优化方法，磁传感器阵列与UUV载体的最佳匹配布设技术，分析阵列的系统误差对磁梯度测量的影响机理，提出有效的误差补偿方法；在UUV水下高精度磁场梯度的测量方面，研究UUV的旋转震动及海浪磁噪声对磁梯度测量的影响，提出磁干扰的实时抑制方法；在弱磁异常信息探测方面，分析磁噪声对磁异常探测效果的影响，重点探索磁噪声作用下磁异常特征信息的增强机理，提出有效的弱磁异常信息的探测新方法。开展相关的水下弱磁异常探测试验研究，验证所提方法的有效性。项目的研究成果有助于提升UUV水下弱磁异常信息的感知能力，为水下大范围海洋磁异常信息获取提供一定的理论指导和有效方法。

In order to meet the needs on ocean exploration and homeland security, and solve the core scientific problems and key technical problems in developing the method for detecting the weak magnetic anomaly based on Unmanned Underwater Vehicle (UUV), the project intends to carry out the researches on detection methods and techniques for underwater weak magnetic anomaly based on UUV magnetic sensor array. For the sensor array of magnetic anomaly detection, baseline optimization method for the array with magnetic sensors, and optimal matching layout technology of sensor array and UUV are will be investigated. An effective method for error compensation will be proposed based on analysis of the influence mechanism of system error on magnetic gradient. For the underwater high-precision magnetic gradient measurement in UUV, the influence of rotating vibration of UUV and magnetic noise of ocean waves on measurement will be investigated, and the real-time suppression algorithm will be proposed. For the weak magnetic anomaly detection, we will analyze the effect of magnetic noise on magnetic anomaly detection, and develop magnetic noise suppression algorithm. We will also focus on exploring a new enhancement mechanism of magnetic anomaly feature information under magnetic noise, and proposes a new effective method for detecting the weak magnetic anomaly information. Finally, relevant experiment about magnetic anomaly detection will be carried out to validate the effectiveness of the studied and approaches and methods. The research results of the project will be helpful to improve the perception ability of UUV for detecting underwater weak magnetic anomaly information, and provide some theoretical guidance and effective methods of information acquisition in underwater large-scale ocean magnetic anomaly.