Ketchum, R. L., Lemmon, J. J., & Hoffman, J. R. (1997). Site selection plan and installation guidelines for a nationwide differential GPS service. United States. National Telecommunications and Information Administration. https://rosap.ntl.bts.gov/view/dot/4090
Ketchum, Ronald L., John J. Lemmon, and J. Randy Hoffman. Site selection plan and installation guidelines for a nationwide differential GPS service. United States. National Telecommunications and Information Administration, 1997. https://rosap.ntl.bts.gov/view/dot/4090.
Ketchum, Ronald L., et al. Site selection plan and installation guidelines for a nationwide differential GPS service. United States. National Telecommunications and Information Administration, 1997, ROSA P. https://rosap.ntl.bts.gov/view/dot/4090.
The Global Positioning System (GPS), in its current form, is used within the transportation industry for vehicle tracking and navigation. With the advent of a nationwide differential GPS (DGPS) service, this role will expand to include public safety, infrastructure management, mayday services, and other yet unknown applications. The U.S. Department of Transportation is considering a nationwide DGPS service, modeled after the U.S. Coast Guard's Local Area Differential GPS system, to support surface applications. This service, when fully implemented, will provide accurate navigation and positioning information across the nation, promoting safety and efficiency in transportation and other fields. The purpose of this document is to familiarize individuals responsible for the implementation of a DGPS system with the concept, configuration, operation, and performance of a nationwide DGPS service. The general requirements for DGPS broadcast site selection, and the recommended locations of broadcast sites, to complete nationwide coverage of the DGPS correction signal, are presented. The equipment required for broadcast site operation is described, along with the basic operation of this equipment.
Ketchum, R. L., Lemmon, J. J., & Hoffman, J. R. (1997). Site selection plan and installation guidelines for a nationwide differential GPS service. United States. National Telecommunications and Information Administration. https://rosap.ntl.bts.gov/view/dot/4090
Ketchum, Ronald L., John J. Lemmon, and J. Randy Hoffman. Site selection plan and installation guidelines for a nationwide differential GPS service. United States. National Telecommunications and Information Administration, 1997. https://rosap.ntl.bts.gov/view/dot/4090.
Ketchum, Ronald L., et al. Site selection plan and installation guidelines for a nationwide differential GPS service. United States. National Telecommunications and Information Administration, 1997, ROSA P. https://rosap.ntl.bts.gov/view/dot/4090.
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