为实现相控阵雷达探测高超声速目标最远发现距离尽可能大，设计了一种基于改进告警⁃确认检测方法的搜索参数优化策略。首先根据雷达原理和目标特性指出搜索参数优化需求，分析告警⁃确认检测基本原理并给出考虑搜索空域内新目标平均出现率的帧时间计算公式，然后以每个波位的告警检测与确认检测的驻留时间和虚警概率为优化变量、以最大化最远发现距离为目标函数建立搜索参数优化数学模型并给出求解步骤，最后对设计方法的有效性进行仿真验证。结果表明，在总虚警概率和每个位置允许的最大驻留时间双重约束下，设计的搜索参数优化策略可以较短的帧时间获得较大的最远发现距离。跟踪负载相同时，设计的搜索参数优化策略优于均匀搜索方法和告警⁃确认检测方法。

To reach the largest detection range when detecting hypersonic targets with phased array radar， a search parameter optimization strategy is implemented based on the enhanced alert-confirm detection method. Firstly， the needs for search parameters optimization are highlighted in light of target characteristics and principles of radar. The fundamentals of alert-confirm detection are examined， and the calculation method for frame time of the mean appearance rate of new target in the search volum is given. Secondly， the dwell time， false alarm probability of alert detection and confirm detection for each position are taken as optimization variables， and the objective function is the farthest detection range. Following this， the procedures for the solution are provided. Finally， simulation is employed to confirm the viability of the proposed approach. The simulation results demonstrate that the proposed technique may achieve a greater detection range with a shorter frame time under the twin limitations of the total false alarm probability and the maximum dwell time permitted for each position. When the tracking load is the same， the proposed technique performs better than the uniform search method and the alert-confirm detection method.