High Accuracy and Real-Time Pseudorange Generation for GNSS Navigation Signal Simulator Based on Hermit Interpolation

Focusing on the issue that the traditional high accuracy pseudo range generation is hard to satisfy the real-time request, a high accuracy real-time pseudo range generation method based on Hermit interpolation was proposed after the performance comparison of different interpolation algorithm. Then, its theoretical accuracy is analyzed and the main influence factors on the pseudo range generation accuracy are simulated. The results indicate that the real-time performance can reach 10 milliseconds on the condition of 1 millimeter accuracy, which can fully satisfy the real-time request of GNSS navigation signal simulator.