By Ramjee Prasad
This authoritative paintings brings you a well timed, unified research of a few of the satellite tv for pc navigation applied sciences, functions, and providers in operation or improvement, and of the demanding situations that lie forward during this swiftly evolving box. It describes the segments, sign features, functionality, and securities facets of the GPS approach, together with the advances expected within the next-generation GPS-III, and brings you in control at the constructing eu GALILEO procedure and its leading edge features, companies, and power. a glance at ground-based and satellite-based augmentation structures (GBAS and SBAS) highlights their performance-improving good points and the way those platforms might function connection earrings among GPS and destiny networks like GALILEO.This definitive booklet examines the complicated architectures paving the way in which for the longer term integration of satellite tv for pc navigation platforms with instant communications structures, together with next-generation 4G instant networks, and for interoperability one of the assorted satellite tv for pc navigation structures themselves. but unanswered questions on standardization, provider matters, and criminal and legal responsibility concerns also are addressed intimately. hundreds and hundreds of references, illustrations, and an unique layer-based assessment of earth, sea, air, and area navigation platforms around out this entire, forward-looking advisor to satellite tv for pc navigation applied sciences and prone.
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Additional info for Applied Satellite Navigation Using GPS, GALILEO, and Augmentation Systems
The NAVCEN, hence, provides users with notifications on the GPS status through the Notice: Advisory to Navigation Users (NANU). S. Coast Guard Local Notice to Mariners (LNM). In addition, constellation status information about scheduled satellite maintenance or outage can be accessed to the public through, for instance, Internet-based information .
The letter “G” stands for GPS, because the coordinate estimation process was conducted, in both cases, using GPS techniques; the number following the “G” specifies the GPS week number when the related coordinates were employed in the NIMA ephemeris computation [14, 22–24]. S. Air Force (USAF), 11 NIMA Monitor Station Network (MSN), two NIMA MSN development and test, three NIMA Differential GPS Reference Station (DGRS), two NSWCDD, and two IGS sites . WGS-84 (G1150) is the first TRF that includes velocity estimates for each of the coordinate components.
The determination of a position needs the choice of a reference coordinate system, where both the satellites and the user receiver can be represented. Furthermore, the acceptance of a unique time system for both satellite and receiver clocks arises to satisfy the necessity of time synchronization between them. 2 for more details). This time reference is the basis for the operation of the whole satellite system composed of space components (satellites) and ground components (control centers and user receivers).