以空中目标为研究对象,首先,从理论上分析了积累时间与信噪比的关系,给出了根据波位数、波位所在距离段、雷达工作模式、航迹关联门限等因素计算积累点数的方法;然后,通过对雷达实际工作数据的分析,得出雷达实际工作时积累点数对雷达探测性能的影响规律;最后,总结出雷达实际工作时积累点数选择的一般原则。

The object type of this paper researched is the air target. Firstly, the relationship of the accumulation time and the signal-to-noise ratio is analyzed in theory, and the calculating method of accumulated number is designed according to the number of beam position, the distance of beam position, the mode of the radar and the threshold of track correlation; Secondly, some effect rules of accumulated number on detection performance are obtained after analyzing the practical working data of the sky-wave OTHR. Lastly, the general rules of choosing the accumulated number are summarized when the sky-wave OTHR working.