Author : Michael Scharber Organization : Scripps Orbit and Permanent Array Center (SOPAC) Date : August 7, 2003 Description : These schema componenet were desgined to encapsulate and validate : GPS/GLONASS antenna equipment for use/reference in : other XML document types, such as IGS-style Site : Information Logs, and GPS/Geodetic Observation/Occupation Log : from the National Geodetic Survey (NGS). : : The data model used in this XSD aims at uniquely-identifying : a given (single) GPS/GLONASS antenna. This entity could then : be contained within a parent entity which attributes other : aspects of where, when, by whom, and why this particular piece : of equipment was used or referenced. : Notes : All distance/length measurements/values are assumed to be in meters. : All date/time measurements/values are assumed to be of the : ISO8601 variant "CCYY-MM-DDThh:mm:ssZ" (UTC) Pulling in schema components for generic geodetic equipment structures. Instantiable, non-substituble, global complex type representing a GNSS Antenna uniquely-identified by a serial number and IGS model code. Instantiable, non-substituble, global complex type representing the settings (transient properties) of a gnss antenna. Refers to the length (in meters) of the cable used to connect the antenna to other gnss equipment (typically a gnss receiver or set of receivers). Refers to the type of cable used to connect the antenna to other gnss equipment (typically a gnss receiver or set of receivers). Instantiable, non-substituble, global complex type representing the measurement of a distance between a specified location on a gnss antenna and another location of choice. Refers to the distance (+|-) between the geodetic reference point of the associated monument, and a chosen reference point on the antenna. Non-instantiable, non-substituable, non-extendable or restrictable global simple type representing a valid IGS antenna model code.