某型跟踪雷达威力降低问题分析研究

最小可检测信噪比是影响跟踪雷达威力的一项重要参数，中频接收机输出的信噪比达到门限才能被检波识别，雷达才能转入跟踪。针对某型雷达跟踪威力降低问题，分析最小可检测信噪比与跟踪雷达威力之间关系；结合故障树分析排查，给出问题根源和解决方案。经实际检飞试验验证，问题分析准确，解决措施有效。

Research on Problem of Radar Range Decline

Minimum detectable signal-to-noise ratio was an important parameter which had influence on tracking radar range target, as signal-to-noise ratio reached threshold, detector established identification and radar tracking started. Aimming at the problem of tracking radar range decline, the relation between minimum detectable signal-to-noise ratio and radar range was analized, combined with fault tree analysis, the root cause and solution was presented. The proven flight test result show that problem analysis was corret and solution was effective.