Flight-Test Evaluation of Integer Ambiguity Resolution Enabled PPP

The technology of integer ambiguity resolution-enabled precise-point-positioning (also referred to as PPP-AR) has been proven capable providing comparable accuracy, efficiency, and productivity long-baseline real-time kinematic positioning (RTK) during the last decade. Commercial PPP-AR services have provided by different institutions companies widely used in geodetic missions. However, usage research mostly concentrated on nonaviation applications, e.g., vehicle navigation, surveying, mapping, monitoring crustal motions. Few them focused fixing ambiguities an aircraft flight. In this contribution, we implemented technique for first time airplane flight test investigate how much fixed could contribute solutions challenging circumstances, including high velocity severe maneuvers. We looked into influences tropospheric delay because height may dramatically change within a narrow span, thus, proper constraint parameter was crucial computation effects. Then, fix successfully reliably circumstances discussed. Finally, data processed 15 1s intervals with float under configurations illustrate which condition what extent can improve accuracy.