通过试验对以三阶差分相位测量为基础的甚短基线实时姿态角测定法进行了评价,试验是采用两个商用现有GPSC/A码接收机提供综合多普勒测量信息。此算法相对于相位周期漂移是可靠的,而且不要求对测量的整体不定性求解。初步结果表明,绝对姿态角测定需要有基线校准,基线长度为2米时,相对姿态角的精度约为0.l°或2mrads。 A very short baseline real-time attitude measurement based on third-order differential phase measurements was evaluated experimentally using two commercially available GPSC / A code receivers to provide comprehensive Doppler measurement information. This algorithm is reliable with respect to phase shift and does not require an overall uncertainty solution to the measurement. The preliminary results show that the absolute attitude determination requires baseline calibration and the relative attitude angle accuracy is about 0.1 or 2 mrads at a baseline length of 2 meters.