根据反潜直升机及其机载搜索设备的特点，针对扇形应召搜索区的具体情况，提出了当应召搜索区为扇形搜索区时的一种反潜直升机协同搜索方法，即“前堵后追”法，给出了具体的作战使用方法。并通过对搜索机理的详细分析，建立了基于蒙特卡罗法的搜索效能仿真模型，在想定条件下对该搜索方法的搜索效能进行了仿真。仿真结果表明，与其他典型对照搜索方案相比，该搜索方法的搜索效能较高，是扇形应召搜索区一种比较理想的协同搜索方法。

Based on the characteristics of antisubmarine helicopter and its searching equipment,and according to the actual situation of sector searching area,a coordinated searching method was proposed for use in sector searching area of called search for helicopter,namely“frontally intercepting and chasing from behind”,and its detailed operational application methods were put forward.By analyzing the searching mechanism,the simulating models based on Monte Carlo method were established,and the searching effectiveness of this method was studied with the simulating models in scenarios conditions.The simulation results indicated that the effectiveness of this searching method is better than that of other searching schemes,which is an ideal method for use in sector searching area.