【摘要】 介绍GIPSY(GNSS-inferred positioning system)中周跳检测与修复的TurboEdit算法,在此基础上对TurboEdit方法的周跳检测条件进行分析,在用宽巷组合检测周跳的过程中采用滑动平均的方法替代宽巷模糊度中对每一历元之前的所有数据整体求平均的方法,同时在用电离层残差组合检测周跳中采用相邻历元的载波相位电离层残差组合求差的方法,从而避免引入观测噪声较大的伪距电离层残差组合。实验表明:改进后的TurboEdit法对于发生在观测数据质量不好时段的周跳、Turboedit法的检测盲点以及频繁周跳的检测能力都有所提高。更多还原

【Abstract】 The TurboEdit algorithm,which is adopted to detect and repair the cycle slips in GIPSY(GNSSinferred positioning system),is introduced,and on the basis of this introduction the prerequisiste for cycle-slip detecting in the TurboEdit algorithm is analyzed.The moving average is used to replace the overall average of all the data prior to the epoch in detecting the cycle slip with the wide-lane combination algorithm,and in the ionospheric combination algorithm the difference between the values of carrier phase ionospheric combination for adjacent epochs is used to detect the cycle slip so as to avoid the pseudorang ionospheric combination with higher noise.The experimental results show that the improved algorithm is more effective than the original TurboEdit algorithm for the bad observation condition,the blind-spots in TurboEdit algorithm,and high cycle slip rates.更多还原