Degradation of effective carrier-power-to-noise density ratio based on code tracking spectral sensitivity coefficient for GNSS radio frequency compatibility in C band

The frequency band between 5 010 MHz and 5 030 MHz allocated as C band has been used as a candidate in the global navigation satellite systems(GNSS)along with more and more navigation services in L band.The potential benefits and technical requirements of C band for satellite navigation have been analyzed before.However the degradation of effective carrier-power-to-noise density ratio(Δ(C/N0)eff)based on code tracking spectral sensitivity coefficient(CT_SSC)as a compatibility assessment methodology for potential GNSS radio frequency compatibility in C-Band has not been discussed clearly.So the compatibility of the signals in the C band between BeiDou(BD)B1Cand GPS L1 C,L1C/A,Galileo E1 Os as the interoperability or classical signals in L band is analyzed.Simulation results reveal the interference degree between BD III B1 Cand GPS L1C/A,L1 C,Galileo E1 OS.The results can also reveal that the multiplexed binary offset carrier(MBOC)and binary phase shift keying(BPSK)modulation is not appropriate for C band.