On account of the different parameters of delay-locked loop, multipath effect and code bandwidth, the Global Navigation Satellite System (GNSS) pseudorange noise of each frequency is different. An unequal-weighted three-carrier ambiguity resolution (TCAR) algorithm for long-baseline static triple-frequency ambiguity resolution is proposed. The algorithm is conducted in cascaded steps. When calculating the coefficients of the extra-wide-lane (EWL), wide-lane (WL) and narrow-lane (NL) combinations, the difference of pseudorange noise is considered. Real triple-frequency BeiDou Navigation Satellite System and Global Positioning System observations from four International GNSS Service stations from 13 January to 19 January 2019 are analysed to evaluate the performance of the proposed algorithm. Results show that compared to the classical equal-weighted algorithm, the proposed algorithm shows a comparable performance for the EWL and WL ambiguity resolution and much better performance for the NL ambiguity resolution.

中文翻译：

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长基线静态三频模糊度解算的不等权重TCAR算法

由于延迟锁定环，多径效应和代码带宽的参数不同，每个频率的全球导航卫星系统（GNSS）伪距噪声是不同的。提出了一种用于长基线静态三频歧义度解的不等权三载波歧义度解法。该算法以级联步骤进行。在计算超宽车道（EWL），宽车道（WL）和窄车道（NL）组合的系数时，应考虑伪距噪声的差异。分析了四个国际GNSS服务站从2019年1月13日至1月19日的实际三频北斗导航卫星系统和全球定位系统观测结果，以评估该算法的性能。