LIU Liu, LÜ Zhiwei, DAI Qi, ZHOU Pengjin, JIA Zhengyang. Using Triple-Frequency Data Combination to Detect Insensitive Cycle-Slip[J]. Geomatics and Information Science of Wuhan University, 2019, 44(3): 392-397. DOI: 10.13203/j.whugis20160477
Citation: LIU Liu, LÜ Zhiwei, DAI Qi, ZHOU Pengjin, JIA Zhengyang. Using Triple-Frequency Data Combination to Detect Insensitive Cycle-Slip[J]. Geomatics and Information Science of Wuhan University, 2019, 44(3): 392-397. DOI: 10.13203/j.whugis20160477

Using Triple-Frequency Data Combination to Detect Insensitive Cycle-Slip

  • For the issues of detecting insensitive cycle-slip in GNSS signals, this paper analyzes the generation and distribution of insensitive cycle-slip in three-dimensional coordinate system, researches the influence of the detection threshold on detecting insensitive cycle-slip, and then studies the effect of combined detection of combinations. A combination coefficient selection method is proposed for detecting insensitive cycle-slip. This method builds a function model based on the detection amount of combined coefficient, and screening the most sensitive combination coefficients. The method can detect insensitive cycle-slip with similar hop variables at three frequencies. As verified by the BeiDou triple-frequency measured data, multiple GF combinations effectively increase the detection probability of insensitive cycle-slip, and the appropriate number is two. The combination selected by proposed method effectively detect the manually added insensitive cycle-slip.
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