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v
- Visual HierarchyBased on Gestalt Psychological theory, it is the presentation of visual elements to give importance to specific features, influencing the human perception of visual elements.
- Visual VariablesDifferences in elements visible to the human eye. Type: 1) Size 2) Shape 3) Brightness 4) Colour 5) Texture/Grain 6) Hue 7) Saturation 8) Orientation 9) Spacing 10) Position 11) Arrangement
- VLBIVery Long Baseline Interferometry
- VMGVelocity-Made-Good
- Voronoi PolygonMethod for analysis of neighbourhood, ensures unsampled points of a polygon is closer to the polygon's known point than other points.
- Voronoi PolygonsA polygon inside consists of all points in the plane which are closer to a particular lattice point than to others,
- Voxel3D pixel, its position is no defined by coordinates but in relation to other voxels.
- VRVirtual Reality
- VRMLVirtual Reality Modelling Language
w
- W CodeEncryption sequence modulated with P Code.
- WAASWide Area Augmentation System
- WADGPSWide Area Differential Global Positioning System
- WANWide Area Network
- Water CycleProcess of how water circulates on Earth between the oceans, atmosphere and land.
- Water Leak DetectionDetection of water leakage in pipe.
- Water TableSubjected to rainfall, it is the level of water beneath that is saturated with water.
- Waterfall ModelSystem Life Cycle management technique, a linear approach to managing the development and implementation of an IT solution.
- WatershedArea of land where all surrounding water drains into.
- Wave InterferenceWave Property. Where two or more wave combine to reinforce or cancel each other; the amplitude of the resulting wave is equal to the sum of the amplitudes of the combining waves.
- Wave ModulationWhere characteristics of a carrier wave is varied or selected according to another wave.
- Wave ReflectionWave Property. Change in wave direction when waves strike a surface.
- WavelengthWave Property. Distance between two points of a repeating wave.
- WaveletRadiated short-pulse shapes.
- WaypointCoordinate of an intermediate point which must be passed on the way towards the desired destination.
- WCS ProtocolWeb Catalogue Services Protocol
- WeatheringWear and/or change of appearance/texture of objects under prolonged exposure in the atmosphere.
- Web Services Definition LanguageXML based language for describing network services.
- Weighted Linear CombinationMethod for computing index value for raster-/vector-based models, through evaluation of the importance of criterion/factors with the standardization of data.
- Weighted MatrixA weighing matrix of order n, for example, and weight w.
- WeirLow dam that can regulate flow of liquid and/or raise water levels.
- Well LogSee description on Borehole Log.
- WFS ProtocolWeb Feature Services Protocol
- WGS84World Geodetic System of 1984
- White NoiseRandom (noise) signal containing many frequecies in equal intensities.
- Whole-Circle BearingType of Bearing, defined by the clockwise angle from 0ᵒ to 360ᵒ between direction of North to Point of Interest
- Wholly SatisfactoryIt fully meets the intended subject learning outcomes.
- Wide Area Differential Global Positioning SystemWhen a network of base stations, distributed over larger area, is used.
- Wide LaningTechnique for reducing the impact of Phase Ambiguity, where Carrier Phase measurements from both GPS frequencies (L1, L2) are combined, it has the frequency of 347.82MHz and is slower but longer (wavelengths) than the original carriers.
- WithinIn or into the interior or inner part
- WLDWater Leak Detection
- WMS ProtocolWeb Mapping Services Protocol
- Working knowledgeKnowledge found in practice of ideas and concept throughout studies, which can be used practically.
- WSDLWeb Services Definition Language
- WYSIWYGWhat You See Is What You Get
x
- X-BandPart of the Microwave Radio region, the frequency rangs is indefinitely set at approximately 7GHz - 11GHz, mainly used for communication engineering.
- XMLEXtensible Markup Language
- XTECrosstrack Error
y
- Y CodeWith anti-spoofing module, it is generated from W Code.
- YawRotation on Z-axis.
z
- Z ScoreMeasure of spread of values from their respective mean expressed in units of standard deviation.