GPS/BDS ARAIM algorithm performance test
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摘要: 针对高级接收机自主完好性监视(ARAIM)算法的适航性,基于实测数据,对GPS/BDS ARAIM算法故障检测与排除的性能和可用性预测的性能进行了测试. 结果表明:GPS/BDS组合系统下ARAIM算法故障检测与排除的性能良好,对大于100 m的阶跃型故障,正确检测与排除的效率达到99.9%;GPS/BDS组合系统下ARAIM的单点可用性良好,完全满足LPV-200的完好性性能要求,中国范围内的可用性覆盖率达到99%,世界范围内的可用性覆盖率达到90%以上. 由此可知,GPS/BDS ARAIM算法性能良好.
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关键词:
- GPS/BDS组合系统 /
- 完好性 /
- ARAIM算法 /
- 故障检测与排除 /
- 可用性预测
Abstract: Based on the measured data, this paper aims at the airworthiness of the Advanced Receiver Autonomous Integrity Monitoring (ARAIM) algorithm, and tests the performance of GPS/BDS ARAIM algorithm fault detection and elimination and the performance of availability prediction. The test results are as follows. The performance of ARAIM algorithm fault detection and elimination is good under the GPS/BDS combined system, and the efficiency of correct detection and elimination of step faults greater than 100m reaches 99.9%. In single point, the availability of ARAIM under the GPS/BDS combined system is good and fully meets the integrity performance requirements of the LPV-200. The availability coverage in China reaches 99%. The availability coverage in the world reaches more than 90%. So, the performance of GPS/BDS ARAIM algorithm is good. -
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