Since different types of technology are adopted, the proposed system is classified as a hybrid scheme exploiting both indirect remote positioning systems and indirect self-positioning.
Two middle-way approaches are also possible: in indirect remote positioning systems, measurements collected by the mobile node are transmitted via a wireless data link for remote position computation; in indirect self-positioning systems, measurements collected locally by fixed stations are transmitted to the mobile through a wireless data link.
There are mainly two types of positioning situations: self-positioning, where emitter position is determined based on the transmitted signals from the stations, and remote positioning, where the system determines emitter position.
In the light of these challenges, there is a truly urgent need for reassessment of groundwater resources using modern techniques such as remote sensing, global positioning system (GPS), and geographic information system (GIS).
Moreover, technologic advances using the global positioning system, remote sensing, and geographic information systems promise cost-effective improvements in the nature and quality of field data.
Precision agriculture is the use of modern information technologies such as geographic information systems, the global positioning system, and remote sensing from the air to reduce the environmental effects of these chemicals while enhancing the productivity of farming.
These areas of focus reflect the growth of new studies in tectonics, climate and, Earth surfaces processes, and technological advances such as remote sensing, global positioning systems (GPSs), computers, geochronology, shallow geophysics and geochemistry.
Morton Eeks, from Hywind's developer Statoil, says one feature of the design is a positioning system: "You can remote control it to keep it on the site you want to get the best wind".
The handheld unit utilizes a MEMS scanning mirror to achieve a compact design, while remote positioning of the light source, detection systems, electronics, and instrument controls minimizes the size of the probe.
