Effect Law of Navigation Receiver Tracking Loop Under Electromagnetic Interference

被引：0
|
作者：
Zhang Q. [1 ]
Wang Y. [1 ]
Cheng E. [1 ]
Ma L. [1 ]
Chen Y. [1 ]
机构：
[1] National Key Laboratory on Electromagnetic Environment Effects, Army Engineering University Shijiazhuang Campus, Shijiazhuang
来源：
Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology | 2021年 / 41卷 / 02期
关键词：
Dual-source electromagnetic interference; Lockout; Navigation receiver; The tracking loop;
D O I：
10.15918/j.tbit1001-0645.2019.318
中图分类号：
学科分类号：
摘要：
In order to investigate sufficiently the lockout law of the navigation receiver's tracking loop under multi-source electromagnetic interference, a model of the lockout effect of the tracking loop under dual-source electromagnetic interference was studied. Analyzing the mathematical model of the equivalent carrier-to-noise ratio of the correlator output under electromagnetic interference, a model of the tracking loop lockout effect under dual-source electromagnetic interference was established. Then an experiment platform was set up with a single-source and dual-source electromagnetic interference to carry out an injection experiment for the Beidou navigation receiver. During the experiment, four different combinations of interference signals were selected, and under the experiment of each combination, different signal power combinations were obtained. Finally, the experiment data were used to verify the effect model, showing the model errors all within 1.5 dB. This model reveals the internal relationship between dual-source and signal-source interference in the navigation receiver tracking loop, providing a guide for further research on the law of navigation receiver effect. © 2021, Editorial Department of Transaction of Beijing Institute of Technology. All right reserved.
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页码：207 / 213
页数：6
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