磁诱饵空中磁场验证的测量区域研究

对潜艇施放的磁诱饵进行空中磁场验证时，高空中的磁场强度验证过程困难，可在低海拔处进行验证测量，然而磁诱饵磁场在同一海拔的不同区域具有不同的分布特征。为了确定最适合进行验证测量的区域，通过借鉴地形特征统计中的标准差、粗糙度等变化特征参数及水下地形匹配领域中的地形熵，对磁诱饵的空中磁场在目标平面上的分布情况进行分析，研究了以此为依据选择测量区域的方法。利用软件对该选择过程进行了仿真，初步验证了其可行性。并通过海上试验对该方法进行了验证。试验结果显示，通过该方法选择的测量区域的相对测量误差与其他区域相比明显较小。

Study of the Measuring Area in the Proving of Magnetic Field of Magnetic Decoy in Air

In the proving of magnetic field of magnetic decoy discharged from a submarine in air, the magnetic field at low altitude is measured on account of the difficulty in proving the magnetic field at high altitude. However, the distribution characteristics of magnetic field of magnetic decoy are different in the different areas at the same altitude. In order to find the most suitable area to be measured, the distribution of magnetic field of magnetic decoy at a certain altitude is analyzed based on the change characteristic parameters in terrain feature statistics, such as standard deviation and roughness, and the terrain entropy in underwater terrain matching field, and a method of choosing the measuring area is studied. The choosing process of measuring area is simulated. And the sea trial is made to verify the proposed method. The results show that the relative measuring error of area chosen by this method is smaller than that of other area. 〓〓