中文摘要：

针对航空反潜磁异常探测传统探测宽度模型无法准确分析目标磁特性、环境磁特性等因素对航空磁探潜探测宽度的影响,引入概率分布的思想并提出基于信噪比检测依据的新探测宽度模型。为了求解该探测宽度模型,建立了基于磁偶极子目标的航空磁探潜探测模型,目标磁特性模型,环境噪声和检测模型,给出了基于信噪比检测依据的探测宽度模型求解方法和步骤。仿真分析表明：所建立的模型能够充分反映目标特性、地磁场特性、环境磁噪声等级、反潜机探测平台等因素条件对航空磁探潜探测宽度影响;与经典探测宽度模型相比,新建立的模型能够对航空磁探潜探测宽度进行更加有效和精确的计算。

英文摘要：

The traditional sweep width model can not accurately predicate the impact of target magnetic feature, ambient noise on the airborne magnetic anomaly detection sweep width, the traditional sweep width model is improved by adding the idea of probability distribution, and a new sweep width model is proposed based on signal to noise ratio detection criterion. On the basis of establishing airborne magnetic anomaly detection encounter model based on magnetic dipole model, submarine magnetic signature mod- el, ambient magnetic noise model and signal detection model, the calculation method and corresponding procedure for the new sweep width model are presented. Simulation results show that the improved model is effective and accurate in evaluating the effect of submarine magnetic features, geomagnetic dip angle, ambient magnetic noise and detection platform on sweep width of airborne magnetic anomaly detection. The improved model is more effective and accurate in estimating the sweep width of airborne magnetic anomaly detection compared with traditional sweep width model.