天波雷达对空探测任务下积累时间自适应优化设置研究

针对人工设置天波雷达相干积累时间存在盲目性, 不能充分发挥雷达探测性能的问题, 以空中目标探测为研究对象, 提出了自适应积累时间设置优化方法。首先, 分析了积累时间对天波超视距雷达探测性能的影响。其次, 计算了影响相干积累时间的信号时宽和积累点数的最优值。然后, 提出了自适应设置积累点数的方法。最后, 通过实验证明了本文方法比人工方法更能提高天波雷达探测性能。

Research on adaptive setting optimization of accumulation time for the sky-wave OTHR detecting air targets

In view of the blindness of setting coherent accumulation time manually,which cannot give full play to the detection performance of the sky-wave OTHR,the adaptive accumulation time setting optimization method is designed for air targets detection.Firstly,the influence factors of accumulation time on the detection performance of the sky-wave OTHR are analyzed.Secondly,the optimal values of signal time width and accumulation number are calculated.Thirdly,a method of setting accumulation time adaptively is proposed.Finally,the experiment shows that the method in this paper can improve the radar detection performance.