Methodology on measuring dynamic performance of satellite navigation signal simulator

摘要

Satellite navigation signal simulator, as a high precision integrated testing and simulator equipment, can directly affect the performance of the navigation terminal. In particular, the dynamic performance is an important technical indicator of its dynamic characteristics. Currently, only theoretical analyses and researches have been applied to measure dynamic performance of the simulator, while lack of practical and feasible test methods in daily testing work. With the research of the Doppler Effect, this paper analyzes the measurement principles and test methods of simulator's dynamic performance in terms of velocity, acceleration and jerk, and builds a dynamic performance test platform to verify the correctness, practicality and effectiveness of the test method. The uncertainty of relative error measurement result is 1E-6. Experimental results show that the test method is reliable and easy to operate, which can accurately detect dynamic performance of a satellite navigation signal simulator in a simulated environment.