相位求差法与相位率法探测与修复周跳的比较

目前对GPS载波相位观测值周跳的探测与修复有多种方法，但是各种方法都不很完善。介绍常用的周跳探测与修复方法，并利用相位求差法和相位率法进行周跳探测与修复试验。结果表明2种方法均能准确地锁定发生小周跳的历元，而且能高效地修复观测值；然而，相位求差法需要双频观测数据，而相位率法仅需要单频观测数据。

Comparison between differenced phase method and phase-rate method in detection and reparation of cycle slips

There are many methods to detect and repair the cycle slips in GPS carrier data, but none of the methods is perfect. The commonly used methods for detecting and repairing the cycle slips are briefly introduced, and the tests of detecting and repairing the cycle slips have been conducted with the differenced phase method and phase-rate method. The results show that both the two methods not only can exactly detect the epoch when small cycle slips take place, but also can repair the carrier phase value efficiently; however the differenced phase method needs the dual frequency carrier-phase data whereas the phase-rate just needs single frequency data.