Research on the Strategy and Distance Precision of Mordenized GPS M-code Signal

摘要

Mcode signal by the BOC modulation will be the military signal in the plan of GPS modernization. In the paper, M code military signal strategy is analyzed,the modulation principal,the autocorrelation function of the signal are analyzed and simulated. The specialty of the spectrum-apart,the increased signal power level and the structure of navigation message indicate the improvement of antijamming performance for M code as compare with P/Y code signal,the simulation result of code tracking loops accuracy testify the higher measurement precision of M code comapare with P/Y code signal.