Computer Engineering and Applications ›› 2011, Vol. 47 ›› Issue (2): 115-117.DOI: 10.3778/j.issn.1002-8331.2011.02.036

• 数据库、信号与信息处理 • Previous Articles     Next Articles

Backscattering measurement system on P-band in anechoic chamber

GUO Shuxia,HU Chufeng,LI Nanjing,ZHANG Linxi   

  1. National Key Laboratory of UAV Specialty Technique,Northwestern Polytechnical University,Xi’an 710065,China
  • Received:2010-07-28 Revised:2010-11-11 Online:2011-01-11 Published:2011-01-11
  • Contact: GUO Shuxia

室内P波段后向散射测量系统

郭淑霞,胡楚锋,李南京,张麟兮   

  1. 西北工业大学 无人机特种技术国家级重点实验室,西安 710065
  • 通讯作者: 郭淑霞

Abstract: A practical backscattering measurement system on P-band is constructed in an anechoic chamber.Stepped-frequency signal is transmitted to gain high resolution time-domain response.The clutters out of target area are removed by some DSP techniques.After calibration with a metal sphere at the non-optical region,accurate Radar Cross Section(RCS) on P-band can be obtained.In the experiments,the results of four different objects waved less than 1 dB are gained.

Key words: backscattering measurement system, P-band, anechoic chamber, stepped-frequency signal, radar cross section

摘要: 在微波暗室内构建了一种实用的P波段后向散射测试系统。利用矢量网络分析仪发射步进频率信号,通过傅里叶变换得到目标高分辨率时域响应,然后采用多种信号处理技术消除目标区外的杂波干扰;经过处于非光学区的金属球定标后,获得了P波段的高精度雷达散射截面(RCS)测试数据。实验通过多个目标的对比分析,验证了系统的精度可优于1 dB。

关键词: 后向散射测试系统, P波段, 微波暗室, 步进频率信号, 雷达散射截面

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