Working Papers Archives - Page 8 of 8 - Inside GNSS

Working Papers

September 15, 2010

A Search for Spectrum: GNSS Signals in S-Band, Part II

GNSS utilization of the S-band portion of the radio spectrum provides some challenges to designers of both GNSS navigation signals as well as signals used by other services, in terms of interference avoidance and signal power.

An important existing user of S-band spectrum is the Globalstar communications satellite system. The voice and data services provided by Globalstar employ the 2483.5–2500 MHz band for its satellite downlink communications to user terminals. Additionally, these satellites use multi-beam antennas to enable frequency reuse.

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By Inside GNSS
August 17, 2010

A Search for Spectrum

In recent years, researchers have explored possible new allocations for Radio Determination Satellite Service (RDSS) and Radio Navigation Satellite Service (RNSS) spectrum from a regulatory point of view. These studies have mainly discussed S-band and C-band in addition to L-band.

The International Telecommunications Union (ITU) Radio Regulations define RNSS as a subset of RDSS. Although the allocations are differentiated — RDSS usually has a paired uplink — both can actually be used for satellite navigation.

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By Inside GNSS
October 7, 2007

Working Papers

This regular Inside GNSS column explores the technical and scientific themes that underpin Global Navigation Satellite System programs and applications.

It features analyses and discussions by engineers and researchers on topics ranging from GNSS interoperability to preferred technologies for GNSS receivers to antispoofing tools for GNSS signals.

The column is coordinated by Prof. Dr.-Ing Günter Hein, head of Galileo Operations and Evolution Department of the European Space Agency.

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By Inside GNSS
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