| 一种二次雷达大气折射距离误差修正方法 |
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| 引用本文： | 张 银,王 强,喻 波,袁永亭.一种二次雷达大气折射距离误差修正方法[J].电讯技术,2022,62(2):213-217. |
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| 作者姓名： | 张 银 王 强 喻 波 袁永亭 |
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| 作者单位： | 四川九洲空管科技有限责任公司,四川 绵阳 621000;中国西南电子技术研究所,成都 610036;中国人民解放军31435部队,沈阳 110015 |
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| 摘 要： | 大气折射误差是二次雷达测距误差中最主要的因素之一.针对目前还没有二次雷达在大气中的折射距离误差修正模型,根据工程中的检飞数据,提出了一种二次雷达大气折射距离误差修正方法.该方法根据二次雷达获得的C模式气压高度实时计算折射率,得到修正的雷达波速度,减小了大气折射误差,进一步减小了距离测量的误差,从而提高了测距精度.
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| 关 键 词： | 二次雷达 大气折射 距离误差 气压高度 |
An atmospheric refraction ranging error correction method for secondary surveillance radar |
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| ZHANG Yin,WANG Qiang,YU Bo,YUAN Yongting.An atmospheric refraction ranging error correction method for secondary surveillance radar[J].Telecommunication Engineering,2022,62(2):213-217. |
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| Authors: | ZHANG Yin WANG Qiang YU Bo YUAN Yongting |
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| Affiliation: | (Sichuan Jiuzhou Aerocont Technologies Co.,Ltd.,Mianyang 621000,China;Southwest China Institute of Electronic Technology,Chengdu 610036,China;Unit 31435 of PLA,Shenyang 110015,China) |
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| Abstract: | The error of atmospheric refraction is one of the most important factors for secondary surveillance radar(SSR)ranging error.At present,there is no correction model for refraction ranging error of SSR in the atmosphere,so a correction method for the atmospheric refraction ranging error of the SSR is proposed according to the data of flight trial in the project.The refractive index of air is calculated in real time according to the barometric height obtained by the SSR mode C.The correction speed of radar waves can be obtained according to the refractive index of air to reduce the atmospheric refraction error and the ranging error,thus improving the ranging accuracy. |
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| Keywords: | secondary surveillance radar atmospheric refraction ranging error barometric height |
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