Article,
New GNSS Signals: Receiver Design Challenges
Proc. of the 2004 International Symposium on GNSS/GPS, Sydney, Australia, (December 2004)
Abstract
In the coming years, many more satellite positioning signals will
become available to civilian users. In addition to the L2 and L5
signals of GPS is the array of different signals that will be broadcast
by Galileo. A Galileo receiver will be required to be fully compatible
with GPS, so the receiver will need to be sophisticated enough to
receive and process all of these signals simultaneously. In this
paper, we examine the implications for the receiver designer: how
the antenna design becomes significantly more difficult, how the
frequency plan must be very carefully thought out, how the correlator
''channels''? will be more elaborate. It may, however, be possible
to simplify the design somewhat if advantages presented by the use
of software radio, software-defined radio, and reconfigurable techniques
are fully exploited
