A phase jump phenomenon in interferometry... Therefore, this phase jump phenomenon can be used as optical comparators, reference mark, position indexes, pulse generators, edge detection, etc....
Experimental testing of flight control head up displays... The CV 193 V incorporates the velocity vector reference mark, eliminates much other data, clusters the rest in a small area of the visual field and is seen together with the outside landscape....
Influence of real-time kinematic network in cadastral surveying... This study focuses on analyzing the performance of GPS observation using Network based-RTK technique and Virtual Reference Station-RTK technique in conducting cadastral reference mark within a 30 km radius from the existing MyRTKnet Station and also outside a 30 km radius from the existing Reference Station....
Choosing parameters of spatial position control optical-electronic systems with active reference marks...Research.The paper considers parameters relations in active reference mark optical-electronic system of large-sized structures spatial position control in the presence of vertical temperature gradient....
