February 16, 2005
San Diego County Real-Time Very High Rate High-Precision GPS Network Interfaces via HPWREN
The HPWREN communications backbone is being utilized to develop the
San Diego County Real-Time GPS Network (SDCRTN), a collaboration
of UCSD/SIO and San Diego County's Department of Public Works and
Sheriff's Department. The network, consisting of 22 high-precision
GPS stations, originally designed for long-term crustal motion
monitoring, is being upgraded to real-time operations to be useful
for San Diego County decision makers in the areas of infrastructure
monitoring, surveying and GIS, hazards management, emergency response,
and crime scene investigations.
The first station to use HPWREN is the SCIGN (Southern California
Integrated GPS Network) station at Palomar Observatory. It was
upgraded to 1 Hz streaming in July 2004. On February 3, 2005, the
second station began streaming data from a site at the Ramona Airport.
This station is first of four stations constructed and funded by the
County specifically for SDCRTN. These four stations are unique in
that they are the first high-precision GPS stations that can sample
at very high rates (up to 20 Hz), suitable for supporting real-time
dynamic applications. This is made possible by the 45 Mbps HPWREN
The network will also include an upgrade of 11 new stations of EarthScope's Plate Boundary Observatory (PBO), and two stations (Camp Elliot and NASA's Monument Peak facility) that will provide a collocation of modern GPS and broadband instruments. The network will also utilize the communications backbone operated by the Sheriff's Department.
Click here for a 9 megabyte
PDF copy of a recent presentation at the CSRC Real-Time Symposium.
-- Yehuda Bock, Research Geodesist, Director, Scripps Orbit and Permanent Array Center (SOPAC) and Director, California Spatial Reference Center (CSRC), Institute of Geophysics and Planetary Physics UCSD
(This is an update to http://hpwren.ucsd.edu/news/040402.html)
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