This study is sponsored by the National Natural Science Foundation of China(U20B2056,42004014,41974001);the Natural Science Foundation of Jiangsu Province(BK20200530).
The Wide-Lane(WL)and Narrow-Lane(NL)Uncalibrated Phase Delays(UPDs)are the prerequisites in the traditional Precise Point Positioning(PPP)Ambiguity Resolution(AR).As the generation mechanism of various biases becomes ...
supported by the National Natural Science Foundation of China(Nos.51905024,51975035 and 91960203).
Imposing compressive residual stress field around a fastening hole serves as a universal method to enhance the hole fatigue strength in the aircraft assembly filed.Ultrasonic Peening Drilling(UPD)is a recently propose...