相控阵雷达空间碎片探测能力建模仿真研究

摘要

研究空间碎片探测能力问题,由于相控阵雷达(Phased Array Radar,PAR)的空间碎片探测能力不会随着最大作用距离的增加而无限增加,还将受到雷达时间资源的限制.可将时间资源限制引入到相控阵雷达探测能力进行分析,为了体现雷达时间资源的影响,提出了资源占用率统计量(Resource Consumption Rate Statistics,RCRS)的概念和计算分析方法,通过对统计量的累加概率函数设置门限提出评价时间资源占用的量化指标,并以上述指标作为雷达探测能力的限制条件.最后,利用实际运行的空间碎片轨道根数和RCRS数据,对相控阵雷达探测能力进行仿真.结果表明,当雷达探测距离最大时,时间资源会限制相控阵雷达探测能力.%The detection capability of space debris by Phased Array Radar (PAR) cannot increase infinitely with the maximum range of radar increasing, but is limited by radar time resource. Time resource limit was introduced to the simulation and analysis of detection capability by Phased Array Radar. In order to reflect the influence of time resource , the concept and analysis method of resource consumption rate statistics ( RCRS) were proposed in this paper, and then the quantitative indicator for time resource occupation was given by setting threshold to the cumulative probability function of RCRS, which becomes the limit to the detection capability. Finally, the detection capability of the phased array radar model was simulated and analyzed, using orbit elements and RCS of actual space debris. The results show that the time resource can be an important factor to limit the detection capability of phased array radar, when the maximum radar range is far.