Abstract: The authors start with the brief demonstration of MLS stimulator and its metrology specifications. Then, they present the research achievements on automatic metrology system for MLS simulator, including the construction and key technology of the hardware subsystem, the core process and architecture of the software subsystem. They lastly use the automatic metrology system for some MLS simulators verification/calibration. The application shows that the findings have surmounted technical difficulties of MLS simulator metrology support and ensured the parameters accuracy and consistency of MLS  airborne equipment, which make sense for improving flight safety.

Key words: Microwave Landing System (MLS), Simulator, Automatic metrology system, Design