基于多假设解分离的CRAIM算法研究
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摘要
为满足III类精密进近和舰载机着舰等高精度定位的完好性需求,提出了一种基于多假设解分离(MHSS)的CRAIM算法。在约束条件下对各故障假设模式的完好性风险和连续性风险进行优化分配,计算最优垂直保护门限(VPL),并分析了VPL和单颗卫星故障先验概率、单差载波相位测量偏差最大值及标称值之间的关系。实验结果表明,该算法降低了VPL值,提高了系统可用性,并且卫星故障先验概率、偏差最大值及标称值会影响VPL的大小,但不影响算法的稳定性。
In order to meet the integrity requirement of high accuracy positioning like precision approach CAT III and carrier-based aircraft landing, a MHSS(Multiple Hypothesis Separation Solution) based CRAIM algorithm is proposed in this paper. The integrity risk and continuity risk of each failure mode are optimized under the constraint condition to calculate the optimal vertical protection level(VPL) threshold, and the relationships between VPL and priori probability of single satellite fault, maximum and nominal value of single-difference carrier phase measurement deviation are analyzed. The simulation results show that the proposed algorithm can provide a lower VPL and increase the availability of the system, VPL will be affected by the priori probability of satellite fault, maximum and nominal value of measurement deviation while the algorithm performance is relatively stable.
In order to meet the integrity requirement of high accuracy positioning like precision approach CAT III and carrier-based aircraft landing, a MHSS(Multiple Hypothesis Separation Solution) based CRAIM algorithm is proposed in this paper. The integrity risk and continuity risk of each failure mode are optimized under the constraint condition to calculate the optimal vertical protection level(VPL) threshold, and the relationships between VPL and priori probability of single satellite fault, maximum and nominal value of single-difference carrier phase measurement deviation are analyzed. The simulation results show that the proposed algorithm can provide a lower VPL and increase the availability of the system, VPL will be affected by the priori probability of satellite fault, maximum and nominal value of measurement deviation while the algorithm performance is relatively stable.
引文
[1]苏先礼.GNSS完好性监测体系及辅助性能增强技术研究[D].上海:上海交通大学,2013.
[2]FENG Shaojun,OCHIENG W,MOORE T,et al.Carrier phase-based integrity monitoring for high-accuracy positioning[J].GPS Solutions,2009,13(1):13-22.
[3]YUN H,YUN Y,KEE C.Carrier phase-based RAIM algorithm using a gaussian sum filter[J].Journal of Navigation,2011,64(1):75-90.
[4]KIRKKO-JAAKKOLA M,TRAUGOTT J,ODIJK D,et al.A raim approach to GNSS outlier and cycle slip detection using L1 carrier phase time-differences[C]//IEEE.Proceedings of 2009 IEEE Workshop on Signal Processing Systems.[S.l.]:IEEE
[5]GRATTON L,JOERGER M,PERVAN B.Carrier phase relative RAIM algorithms and protection level derivation[J].Journal of Navigation,2010,63(2):215-231.
[6]FENG S J,JOKINEN A,MILNER C,et al.New methods for dual constellation single receiver positioning and integrity monitoring[J].Geo-spatial Information Science,2013,16(3):201-209.
[7]JOKINEN A,FENG S,SCHUSTER W,et al.Integrity monitoring of fixed ambiguity precise point positioning(PPP)solutions[J].Geo-spatial Information Science,2013,16(3):141-148.
[8]孙淑光,聂玉琴,刘亦石,等.GPS多星故障识别改进算法的仿真研究[J].测控技术,2014,33(7):139-143.
[9]BLANCH J,WALTER T,ENGE P,et al.Advanced RAIMuser algorithm description:integrity support message processing,fault detection,exclusion,and protection level calculation[C]//ION.Proceedings of the 25th International Technical Meeting of The Satellite Division of the Institute of Navigation.[S.l.]:ION:2012:2828-2949.
[10]BLANCH J,WALTER T,ENGE P.RAIM with optimal integrity and continuity allocations under multiple failures[J].IEEE Transactions on Aerospace and Electronic Systems,2010,46(3):1235-1247.
[11]JIANG Yiping,WANG Jinling.A-RAIM and R-RAIMperformance using the classic and MHSS methods[J].Journal of Navigation,2014,67(1):49-61.
[12]谢钢.GPS原理与接收机设计[M].北京:电子工业出版社,2009:167-168.
[13]阳凯,郭承军.基于完好性与连续性风险的最优垂直保护门限计算[J].计算机工程,2017,43(1):50-54.
[14]GEAS Panel.GNSS Evolutionary Architecture Study:Phase IPanel Report.Washington:FAA,2008:26-29.
[15]GEAS Panel.GNSS Evolutionary Architecture Study:Phase IIPanel Report.Washington:FAA,2010:10-12.
[2]FENG Shaojun,OCHIENG W,MOORE T,et al.Carrier phase-based integrity monitoring for high-accuracy positioning[J].GPS Solutions,2009,13(1):13-22.
[3]YUN H,YUN Y,KEE C.Carrier phase-based RAIM algorithm using a gaussian sum filter[J].Journal of Navigation,2011,64(1):75-90.
[4]KIRKKO-JAAKKOLA M,TRAUGOTT J,ODIJK D,et al.A raim approach to GNSS outlier and cycle slip detection using L1 carrier phase time-differences[C]//IEEE.Proceedings of 2009 IEEE Workshop on Signal Processing Systems.[S.l.]:IEEE
[5]GRATTON L,JOERGER M,PERVAN B.Carrier phase relative RAIM algorithms and protection level derivation[J].Journal of Navigation,2010,63(2):215-231.
[6]FENG S J,JOKINEN A,MILNER C,et al.New methods for dual constellation single receiver positioning and integrity monitoring[J].Geo-spatial Information Science,2013,16(3):201-209.
[7]JOKINEN A,FENG S,SCHUSTER W,et al.Integrity monitoring of fixed ambiguity precise point positioning(PPP)solutions[J].Geo-spatial Information Science,2013,16(3):141-148.
[8]孙淑光,聂玉琴,刘亦石,等.GPS多星故障识别改进算法的仿真研究[J].测控技术,2014,33(7):139-143.
[9]BLANCH J,WALTER T,ENGE P,et al.Advanced RAIMuser algorithm description:integrity support message processing,fault detection,exclusion,and protection level calculation[C]//ION.Proceedings of the 25th International Technical Meeting of The Satellite Division of the Institute of Navigation.[S.l.]:ION:2012:2828-2949.
[10]BLANCH J,WALTER T,ENGE P.RAIM with optimal integrity and continuity allocations under multiple failures[J].IEEE Transactions on Aerospace and Electronic Systems,2010,46(3):1235-1247.
[11]JIANG Yiping,WANG Jinling.A-RAIM and R-RAIMperformance using the classic and MHSS methods[J].Journal of Navigation,2014,67(1):49-61.
[12]谢钢.GPS原理与接收机设计[M].北京:电子工业出版社,2009:167-168.
[13]阳凯,郭承军.基于完好性与连续性风险的最优垂直保护门限计算[J].计算机工程,2017,43(1):50-54.
[14]GEAS Panel.GNSS Evolutionary Architecture Study:Phase IPanel Report.Washington:FAA,2008:26-29.
[15]GEAS Panel.GNSS Evolutionary Architecture Study:Phase IIPanel Report.Washington:FAA,2010:10-12.