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GPS Services
Orbis, Inc. provides clients with the technological expertise necessary to implement and maintain GPS technology in your organization. Whether assistance is needed in evaluating the implementation of GPS technology, selecting the appropriate GPS system to purchase, training on the use of existing GPS equipment, or technical support in actual field data collection and data processing, Orbis can help. We have over ten years of experience utilizing receivers and software from major commercial GPS vendors (Trimble, CMT, Magellan). With this expertise, we can assist your organization in using GPS as either a stand-alone tool or as part of a larger information data collection system.

Available GPS Services:
  • Training
  • Field Data Collection
  • Data Processing
  • System Evaluation
  • Implementation Planning
    What is GPS?
    Global Positioning System (GPS) is a satellite-based navigation system developed and operated by the United States Department of Defense (DoD). GPS allows for airborne, land, and sea based users to determine their position, velocity, and time 24 hours a day, in all weather, anywhere on the earth.

    The GPS system is comprised of three segments: space, control, and user. The space segment consists of a constellation of 24 satellites orbiting the earth at 20,000 km. The satellites are grouped into six orbits with a 12-hour rotation period for each satellite to completely circle the earth. The satellites are positioned in orbit around the earth so that a minimum of six satellites are in view to every location on earth 24 hours a day. The control segment consists of a master control station in Colorado Springs, Colorado, with five monitoring stations and three ground antennas. The control segment is responsible for continuously monitoring the satellites and ensuring that they are functioning properly. The user segment consists of the commercial receivers that allow land, sea, or airborne operators to receive the GPS satellite broadcasts and compute the users position, velocity, and time. The GPS system is based on the concept of satellite ranging. Users figure their position on earth by measuring their distance from each satellite and then performing a triangulation to calculate their position on earth. The satellites are acting simply as precise reference points. Commercial receivers available today are capable of providing accuracies to locate within inches of a user's actual location on the earth.