基于软件接收机的卫星导航信号模拟器性能指标测试

Test of GNSS Simulator Performance Indicators Based on Software Receiver

摘要:

针对卫星导航信号模拟器的性能指标测试评估问题,提出了基于软件接收机的性能指标测试方法;通过分析模拟器性能,包括对动态性能、相位噪声、通道间时延一致性和静态定位精度的综合分析,给出了相应的测试方法和测试流程,并结合卫星导航信号模拟器产生的实际信号对各项性能指标的测试结果进行分析;经测试结果表明,软件接收机可以有效地对卫星导航信号模拟器各项性能指标进行测试,测试结果符合理论预期,满足模拟器性能指标测试评估的需求。

Abstract:

For performance indicators test of GNSS simulator, this paper proposes a performance test architecture based on software receiver. Through the GNSS simulator performance analysis, including dynamic performance, phase noise, inter-channel delay consistency and static positioning accuracy, this paper gives the corresponding test methods and test procedures, and test results obtained with the actual data from GNSS simulator of each index. The test results show that the software receiver can effectively test the performance of GNSS simulator, which is in line with theoretical expectations, and meet the needs of testing and evaluation of GNSS simulator.