联合北斗优选MW组合和无几何相位组合实时探测和修复三频周跳

针对使用B1和B2频点组成的MW观测值受噪声误差和电离层延迟误差影响较大的问题，提出使用B2和B3频点观测值组成弱电离层超宽巷MW组合的方法。联合优选的北斗MW组合和2个弱电离层的无几何相位组合（1,0,－1）和（0,1,－1）进行周跳探测和修复实验。结果表明，采用B2和B3频点观测值组合的MW组合伪距噪声更小、探测精度更优，有利于周跳的探测和修复。

Real Time Cycle Detection and Repair for Triple-Frequency ObservationsUsing Beidou Optimized MW and Geometry-Free Phase Combination

Observations made up of B1 and B2 signals in the MW combination are greatly affected by noise error and ionospheric delay error, so we propose to use the observed values of B2 and B3 signals to constitute the ultra-wide lane MW combination of weak ionosphere. The joint modified MW combination and the two geometry-free phase combination (1, 0, －1) and (0, 1,－1) of the two weak ionospheres are used for cycle slip detection and repair experiments. The experimental results show that MW pseudorange noise is reduced and detection accuracy is better, which is conducive to the detection and repair of the cycle slip.