Abstract
Based on carrier phase positioning, narrow band systems such as pseudolites and cellular networks can achieve decimeter-level to centimeter-level positioning accuracy. In this paper, we propose a new carrier phase positioning method based on dual-antenna transmitters (TXs). All TXs maintain frequency synchronization, while each TX broadcasts distinguishable signals through two antennas respectively. The two signals from the same TX maintain time synchronization, and single difference makes the partial fixed solutions available. In this way, the proposed method can realize single point positioning (SPP) and avoid data transmission brought by double difference. It is shown by the simulation results that our method has better accuracy than traditional SPP methods with floating-point solutions.
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