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非相干散射雷达的空间碎片参数统计分析

DOI: 10.11728/cjss2015.04.495, PP. 495-501

Keywords: 非相干散射雷达,空间碎片,参数,统计分布

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Abstract:

采用匹配滤波方法处理了非相干散射雷达的原始采样数据(时长约7h),共检测到394个空间碎片,估算了其轨道高度、径向速度、散射截面、等效直径及径向加速度等参数,统计分析了这些参数的变化特征,得到穿过雷达波束的空间碎片流量约为60h-1,信噪比为10~1000,空间碎片主要分布在600~1100km和1400~1600km两个高度区间,散射截面10-5~10-2m2,等效直径3~10cm,径向速度-1.5~1.5km·s-1,径向加速度20~90m·s-2,这对于中国的空间碎片探测与研究具有重要参考意义.

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