【摘 要】
：
A novel triple-frequency cycle slip detection and correction method for BDS is proposed to detect and correct cycle slips when the ionosphere is active.Firs
【机 构】
：
Academy of Space Electrical Information Technology,Xi'an 710100,China
论文部分内容阅读
A novel triple-frequency cycle slip detection and correction method for BDS is proposed to detect and correct cycle slips when the ionosphere is active.Firstly,two sets of phase combinations whose sum equals zero are selected,and the corresponding pseudorange coefficients are obtained by the optimization algorithm,which effectively reduces the ionospheric amplification factor.Then,a set of phase combinations whose sum not equal to zero is adopted to reduce the condition number of coefficient matrices,meanwhile,the ionospheric delay variation between the epochs of this combination data is estimated and corrected.Thus,three linear independence sets of geometry-free and ionosphere-free pseudorange-phase combinations are constructed.
其他文献
In order to enhance positioning accuracy and reliability,improve data utilization,improve the success rate of epoch result,a stratified weighting algorithm
The receiver autonomous integrity monitoring(RAIM)technology,which with the advantage of quick response and completed independent,plays an important role in
The high-accuracy GPS velocity field is one of effective approaches to study the regional crustal displacement,and can provide validations and constraints f
The paper focuses on the performance of multi-GNSS(GPS,BDS,GLONASS,and Galileo)precise point positioning(PPP)of three commonly used models including Un-diff
提出了一种基于滑动窗的融合钟差预报算法，在利用多项式模型对钟差数据进行粗预报的基础上，采用灰色模型对预报残差进行精调整，将粗预报与精调整相结合构成融合钟差预报算法
As for the problem that the non-stationary fluctuating wind induces dramatic changes of atmosphere refraction at tens of meters height above the rough ocean
Time to first fix of ambiguity is always finished by using multiple sequential epochs in real-time kinematic(RTK).Among different epochs,the residual observ
With the increasing number of global navigation satellites and redundant information,the problem of the positioning accuracy and timeliness cannot be taken
Compared with conventional RTK,Network RTK possesses the advantages of wide coverage,high real-time positioning accuracy,high reliability and etc.,which bec
导航卫星采用单自由度太阳帆板，通过动态偏航控制，保证发射天线指向地球的同时太阳帆板法向指向太阳。但动态偏航控制使得卫星发射天线绕卫星位置矢量转动，造成发射信号的相