摘要
针对二维天线在测量目标的俯仰角时,目标俯仰角的测量结果与目标的方位角以及俯仰天线倾角存在耦合的问题,提出了一种基于目标方位角的俯仰角测量修正方法.首先根据目标与俯仰天线的相对位置关系,推导了真实俯仰角与二维天线测量俯仰角和方位角间的关系;随后在俯仰向天线倾角一定时,建立了测量俯仰角与真实俯仰角以及方位角之间的修正模型;最后搭建试验平台,进行了试验验证.试验结果显示,对测量俯仰角进行修正后,俯仰角的修正值趋于标定值.
When measuring the pitch angle of a target,the two-dimensional antenna has a coupling problem between the target pitch angle measurement results,the target azimuth angle and the pitch antenna inclination angle.In view of the problem above,this paper proposes a pitch angle measurement correction method based on target azimuth.Firstly,the paper accords to the relative position relationship between the target and the pitch antenna to derive the relationship between the real pitch angle,the measured pitch angle and azimuth angle of the two-dimensional antenna,then establishes the correction model between the measured pitch angle,the real pitch angle and the azimuth angle when the tilt angle of pitch antenna is constant,and finally builds the test platform and carries out the test verification.The test results show that the correction value of the measured pitch angle tends to the calibration value after the correction.
作者
贺文干
李翔
王俊文
徐龙
HE Wengan;LI Xiang;WANG Junwen;XU Long(No.38 Research Institute,China Electronics Technology Group Corporation,Hefei 230088,China;Wuhu CEPREI IT Research Institute Co.,Ltd.,Wuhu 241002,China)
出处
《空天预警研究学报》
CSCD
2023年第1期29-31,40,共4页
JOURNAL OF AIR & SPACE EARLY WARNING RESEARCH
关键词
天线倾角
真实俯仰角
测量俯仰角
方位角
inclination angle of antenna
real pitch angle
measured pitch angle
azimuth
