Abstract

We are witnesses of a big boom in satellite navigation today. Current systems are updated with new signals, new systems are in development and new frequency bands are searched due a overcrowding of L-band. Current GNSS systems with full operational capacity are two yet. American GPS and Russian Glonass. GPS third generation with new L1C signal is ready to launch and Glonass is in preparation for its first CDMA signal. Beside of European Galileo countries on east are developing own satellite navigation systems. Chinese BeiDou 2 (called as a Compass for a short time in past) and Indian IRNSS are potentially most interesting systems for us. The Chinese BeiDou in its second global coverage generation prepare new type of satellite. First BeiDou 2 satellites were launched after 2007 and its first signal specification was publicized in 2011, second one with specification of signal in another frequency in 2013. We were able to track and verify both signals in 2012. Indian Regional Navigation Satellite System - IRNSS satellites were launched since 2013 and its signals specification is known since half of year 2014. This system has a regional coverage so far, but will be probably developed to the global navigation system. We deals with it because its signals also covers a considerable part of Eastern and Central Europe and its L5 signal has been received even in Finland. IRNSS also implement signal in new frequency band out of a traditional L-band as the first. Existing GNSS systems are a traditional application of L-band (from 1 to 2 GHz). Usage of an additional band for the Radio Navigation Satellite Service (RNSS) purpose has been considered since 1998. The S (2483.5 to 2500 MHz) and C (5010 to 5030 MHz) bands have been taken into account in the process of the Galileo signals design too, but hasn't been used for Galileo yet. A part of the S-band has been lately used for the Open Service of the Regional Indian Radio Navigation Satellite System. Our contribution describes our experience with these signals reception, discusses their relevance for a navigation in a Europe and with a first experimental reception of satellite navigation system signal in S-band.

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