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View all- Zhang XLi PWang MGe MSchuh H(2024)Application of expectation–maximization algorithm to estimate random walk process noise for GNSS tropospheric delayGPS Solutions10.1007/s10291-024-01714-728:4Online publication date: 24-Sep-2024
Phase fractional cycle biases (FCBs) originating from satellites and receivers destroy the integer nature of PPP carrier phase ambiguities. To achieve integer ambiguity resolution of PPP, FCBs of satellites are required. In former work, least squares ...
GNSS observables for ionospheric estimation are commonly based on carrier-to-code leveling (CCL) and precise point positioning (PPP) methods. The CCL method is a geometry-free method which uses carrier phase to level pseudorange observation for ...
Recently, a unified framework was proposed for forward-backward filtering and penalized least-squares optimization. It was shown that forward-backward filtering can be presented as instances of penalized least-squares optimization. In ...
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