Research and implementation of testing method for key anti-interference performance of GNSS receiver
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TN967.1;P228.4

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    Abstract:

    Anti-interference performance test is an important part of evaluating the performance of satellite navigation receiver. This paper focuses on two key indicators, interference rejection and interference recovery time, have been studied. Firstly, the receiver anti-interference test system based on navigation signal simulator is constructed. Reasonably determine the constraints of the receiver, by adjusting the interference signal to observe the positioning performance of the receiver to reach the constraint condition, to test the interference rejection of the receiver. By controlling the output time of the interference signal, to test the receiver’s delay time of restore normal positioning after interference signals, Then the interference recovery time of the receiver is measured. At last, two different types of receivers are tested in this paper. The performance of both receivers is degraded by the threat of interference signals, the test results of interference rejection and interference recovery time matched with their respective overall performance levels. It indicates that the test method in this paper can correctly evaluate the anti-interference performance of the receiver.

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  • Received:
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  • Online: June 15,2023
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