Study on MSK modulation for s-band

Abstract

With the development of global navigation satellite system (GNSS), the number of signals transmitted in L-band has been increasing. Exploiting new frequency bands for radio navigation satellite service (RNSS) is quite necessary. S-band has received widely attention since the performance of positioning and timing will be benefited significantly by joint positioning of S-band and L-band. The minimum shift keying - binary offset carrier (MSK-BOC) modulation was proposed to be used for Beidou-2 S-band here. The compatibility between Beidou-2 and Beidou-1/Globalstar system was firstly evaluated, and then signal's code tracking error and multipath error envelope were analyzed. Results indicate that the performance in terms of compatibility and tracking precision of MSK-BOC modulation in S-band is good. The research will provide an instructive reference for the signal design and engineering implementation of Beidou-2. © 2013 Springer-Verlag Berlin Heidelberg.