【摘要】 该文描述了目前飞行试验中应用的基于GPS的双差载波相位测量模型，针对飞行试验中飞行器姿态变化及飞行环境变化严重影响GPS测试精度及可靠性的问题，提出基于BDS/GPS双系统的飞行试验融合测量方法。将北斗三代的测量数据引入现有差分模型，建立导航数据双差分模型，并把研究成果在民机飞行中进行试验，验证模型的有效性。通过BDS/GPS载波相位融合测量与双差分融合计算，降低测量误差，优化卫星几何分布，提升飞行试验航迹测试的精度和可靠性，改善四代机在极端飞行试验条件下导航数据缺失的问题，为复杂飞行试验环境的导航数据测量创造条件。更多还原

【Abstract】 This paper describes a GPS-based double-difference carrier phase measurement model used in flight tests. During the flight test, the attitude change of the aircraft and the change of the flight environment have seriously affected the accuracy and reliability of the GPS test. Thus, this paper proposes a flight test fusion measurement method based the system that combines Beidou and GPS and establish a double difference model, the measurement data of Beidou Ⅲ is introduced into the existing difference model. Moreover, this paper verifies the validity of the model by simulating the research results. Through carrier phase measurement and double differential measurement based on the system that combines Beidou and GPS, it can be found that the measurement error is reduced significantly, the geometric distribution is more optimized, and the accuracy and reliability of the flight test track test are improved greatly. The problem of missing navigation data of fourth-generation aircraft under extreme flight test conditions is improved and the conditions for navigation data measurement in complex flight test environment are created.更多还原