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- 2016
基于模糊度相关法的北斗三频载波单历元基线解算
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Abstract:
单历元基线解算一直是卫星导航定位中的热点和难点，随着北斗导航定位系统的全面组网，三频载波可以形成更多优良的组合观测值，有效地提高了单历元基线解算的精度和可靠性。本文在传统TCAR的基础上引入电离层延迟先验信息，将电离层延迟与位置参数和模糊度作为未知参数，采用最小二乘配置原理一并求解。同时，采用考虑电离层延迟影响的模糊度相关法约束模糊度搜索空间。结果表明，加入电离层延迟先验信息可以较大提高单历元模糊度固定的成功率；而采用考虑电离层延迟的模糊度相关法可以缩小模糊度搜索空间，有效地提高单历元模糊度解算的成功率和可靠性
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