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DGNSS of Korea, South Korea's industrial positioning Leading to the Ministry of Maritime Affairs and Fisheries Satellite Navigation Central Office

Applications of GNSS, Aviation Sector

Air Navigation and Landing Guide System

Aircrafts can use GPS to locate their destinations and airports and when approaching an airport, receive corrected data from the DGPS Reference Station installed at the airport or nearby. It can also be used to guide the aircraft accurately on the centerline of the runway.

Accurate 3-D Navigation Data Shown in Light Aircrafts

Today, light aircrafts are equipped with control room display and landing system equipment that are typically comprised of dials, instruments and indicators. In the past, the sophisticated and expensive control room displays were only found on corporate and commercial aircrafts. Thus, a light aircraft pilot faced difficulties in not only navigating to the destination but locating the required navigation route. The aeronautic researchers at Stanford University used DGPS technology to develop machinery for a control room made of glass that enables the pilot to view the horizon, runway and navigation route even amid the clouds or in low visible ranges and can be synchronized with the highly accurate, use-friendly control room display that can obtain information. On an activated matrix of liquid crystal display, the navigation route is displayed as a series of gray polygon, while the plan is represented as a small, yellow triangle. Based on the guide of a virtual plane indicated as a yellow polygon icon, the pilot can navigate the plan safely along the intended navigation route. The system also shows the altitude, direction of travel, air flow speed and horizontal and vertical guide route. Adjusted simulation testing and indoor flying demonstration have shown benefits that are much higher than the benefits provided by the traditional displays.

Measurement of Atmospheric Changes Caused by Climatic Conditions

Researchers of international organizations for marine atmospheric research use DGPS technology to measure the changes in the sea, on land and between biospheres while improving accuracy and reducing cost. When measuring the air movement of 5cm/sec in an airplane that’s traveling 1,000 times faster, the research team uses DGPS technology, which is different from TANS vector of Trimble. This is because the four-antenna system of TANS vector measures not only the location, speed and time but also pitch, roll and azimuth of the object.

Based on the observation of inertia, researchers have extended the high-precision data collection capacity of TANS Vector from 10Hz to 50 times per second.