中文摘要：

综合考虑目标的散布特点以及航空磁探仪探测能力，椎导了磁探仪应召搜索概率评估的解析模型。针对解析评估模型中探测宽度为战术设定值无法准确描述目标磁特性的变化对搜索概率影响的问题，提出了等效平均探测宽度模型。根据建立的航空磁探测相遇模型和检测模型，给出了等效平均探测宽度模型的求解算法。通过蒙特卡罗仿真实验验证了基于等效平均探测宽度搜索概率评估模型的有效性和可信性。不同目标航向和不同反潜机高度条件下的评估结果对比表明基于等效平均探测宽度搜索概率评估模型可以更加有效的评估目标磁特性变化对搜索概率的影响。

英文摘要：

According to the submarine position distribution characteristics and detection capability of the air borne magnetic anomaly detector, an analytic model of ant~submarine call-search probability evaluation on air borne magnetic anomaly detection is derived. Sweep width in the analytic evaluation model is usually tactical set ting which cannot exactly describes the effect of submarine magnetic features change on search probability, so an equivalent average sweep width model is proposed. On the basis of establishing an encounter model and a signal detection model of airborne magnetic anomaly detection, the algorithm to solve the equivalent average sweep width model is provided. The effectiveness and credibility of the search probability analytic model based on equivalent average sweep width are validated with Monte Carlo simulation. The search probability is evaluated by classic model and improved model with different target courses and different anti-submarine plane heights. The results show that the improved model is more effective in evaluating the effect of submarine magnetic fea- ture change on search probability.