一种基于微波暗室的大角域卫星导航接收机测试场景构建方法

发布时间：2018-06-06 22:36

本文选题：卫星导航接收机 + 大角域　；参考：《红外与激光工程》2014年09期

【摘要】：提出了一种基于微波暗室的大角域测试场景构建方法,该方法利用已有42°射频面阵,采用多状态联合校准方法对面阵天线单元到接收机的信号幅度和相位进行校准,以及采用灰色关联分析方法将外界环境下的卫星星座、动态干扰在微波暗室内实现逼真映射,构造最大视场角为160°的半实物抗干扰测试场景。仿真测试结果表明:暗室天线单元与实际场景下的卫星星座在角域关系下最大误差在高增益3dB波束宽度内,暗室模拟的动态干扰与实际环境下到达接收机的功率基本一致;最后实现了对多波束抗干扰接收机的测试,并通过干信比与有效载噪比的关系曲线说明了该方法能够在室内实现导航接收机测试环境的逼近模拟,并准确地测试出多波束接收机的抗干扰性能。
[Abstract]:In this paper, a method of constructing large angle field test scene based on microwave darkroom is proposed. The method uses 42 掳RF array to calibrate the signal amplitude and phase from antenna unit to receiver by multi-state joint calibration method. By using the grey correlation analysis method, the satellite constellation in the external environment is mapped realistically in the microwave darkroom, and the hardware-in-the-loop anti-jamming test scene with the maximum viewing field angle of 160 掳is constructed. The simulation results show that the maximum error between the antenna unit in the dark chamber and the satellite constellation in the actual scene is in the high gain 3 dB beam width, and the dynamic interference of the chamber simulation is basically the same as the power reached the receiver in the actual environment. Finally, the multi-beam anti-jamming receiver is tested, and the relationship curve between the dry signal ratio and the effective carrier / noise ratio shows that the method can achieve the approximate simulation of the test environment of the indoor navigation receiver. The anti-jamming performance of multi-beam receiver is tested accurately.
【作者单位】：西北工业大学无人机特种技术重点实验室;
【基金】：某部级基金(20212HK03010) 2010年西北工业大学科技创新基金(2010KJ0140)
【分类号】：TN965.5

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