A new analytical solar radiation pressure model for current BeiDou satellites: IGGBSPM.
A new analytical solar radiation pressure model for current BeiDou satellites: IGGBSPM.
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当前北斗卫星的新太阳辐射压力分析模型：IGGBSPM
DOI：
10.1038/srep32967
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发表时间：
2016-09-06
影响因子：
4.6
通讯作者：
Ou J
中科院分区：
文献类型：
--
作者：
Tan B;Yuan Y;Zhang B;Hsu HZ;Ou J
基于射线追踪方法，针对地球静止轨道（GEO）、倾斜地球同步轨道（IGSO）和中地球轨道（MEO）三种北斗卫星类型，开发了分析太阳辐射压力（SRP）模型IGGBSPM（大地测量与地球物理研究所北斗太阳压力模型的缩写）。 IGGBSPM 的性能根据数值积分、SLR 残差和经验 SRP 参数分析（重叠计算除外）进行评估。数值结果表明，对于GEO和非GEO卫星，IGGBSPM得出的积分轨道与精确星历表分别相差约5米和2米。此外，当使用 IGGBSPM 作为先验模型来增强具有随机脉冲的 ECOM（5 参数）模型（称为 ECOM + APR）以进行精确定轨时，SLR RMS 残差在偏航转向期间比仅使用 ECOM 的解决方案提高了约 20-25%，在偏航固定期间提高了约 40%。对于北斗GEO01卫星来说，在日食季和日食季期间分别可以实现18%和32%的改进。对估计的 ECOM D0 参数的研究表明，仅 ECOM 解中明显的 β 角依赖性在 ECOM + APR 解中不再存在。
An analytical solar radiation pressure (SRP) model, IGGBSPM (an abbreviation for Institute of Geodesy and Geophysics BeiDou Solar Pressure Model), has been developed for three BeiDou satellite types, namely, geostationary orbit (GEO), inclined geosynchronous orbit (IGSO) and medium earth orbit (MEO), based on a ray-tracing method. The performance of IGGBSPM was assessed based on numerical integration, SLR residuals and analyses of empirical SRP parameters (except overlap computations). The numerical results show that the integrated orbit resulting from IGGBSPM differs from the precise ephemerides by approximately 5 m and 2 m for GEO and non-GEO satellites, respectively. Moreover, when IGGBSPM is used as an a priori model to enhance the ECOM (5-parameter) model with stochastic pulses, named ECOM + APR, for precise orbit determination, the SLR RMS residual improves by approximately 20–25 percent over the ECOM-only solution during the yaw-steering period and by approximately 40 percent during the yaw-fixed period. For the BeiDou GEO01 satellite, improvements of 18 and 32 percent can be achieved during the out-of-eclipse season and during the eclipse season, respectively. An investigation of the estimated ECOM D0 parameters indicated that the β-angle dependence that is evident in the ECOM-only solution is no longer present in the ECOM + APR solution.
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