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A collaborative research project between the Australian Cooperative Research Centre for
Spatial Information (CRCSI) and the Japanese Aerospace Exploration Agency (JAXA) aims
to assess the feasibility of using the Japanese Quasi-Zenith Satellite System (QZSS), in
particular the L-band Experimental (LEX) signal to deliver precise positioning solutions in
Australia. This paper presents the results of a study to transmit precise correction messages
such as satellite orbits, clocks and biases through the LEX signal to enable real-time Precise
Point Positioning with Ambiguity Resolution (PPP-AR). Real-time precise correction
messages based on available real-time correction products made available by the IGS were
transmitted from Australia to the QZS master control station in Japan for broadcasted on the
LEX signal. The correction messages were received and decoded in Australia and used to
calculate real-time PPP-AR solutions.
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