GRB

Quantitatively describing the distribution pattern of spatial features.

Principle Component Analysis

Pearson's Correlation Coefficient

Positional Dilution of Precision

A measure of linear correlation between two variables (X, Y) given between +1 and -1 where: 0 = no correlation +1 = positive correlation -1 = negative correlation

Data set divided into 100 parts/categories.

Ability to perceive (view and understand).

Recognition, understanding and interaction of information as presented to the user.

Point in satellite orbit closest to Earth.

The degree of which electrical signals can travel through a material.

The ability for electical energy to pass through or be stored in a material.

Length of line at right angles to the survey line.

Representation of 3D view on 2D medium (e.g., via sketching) with reference to how 3D objects are percieved/viewed in real-life, presentation of objects as according to convering rays through a common point (e.g., camera lens, eye).

Ability to eloquently, coherently and logicially present ideas to convince others.

Program Evaluation and Review Technique

The unknown (integer) number of completed cycles of transmitted signal between the satellite and receiver.

Phase differences expressed in degrees (0ᵒ, 90ᵒ, 180ᵒ, 270ᵒ, 360ᵒ) during a cycle.

Signal used by EDM to determine distance through the time phase difference between transmitting and receiving signal.

The imaginary component of propagation constant in a plane wave.

Delay caused by atmospheric bias when signal enters through the ionosphere and troposphere.

Determination of distance by tracking carrier phase by taking measurements of the difference: 1) Between Satellites 2) Between Receivers 3) Between Epochs Refer to Description on Differencing.

A control system where the phase of the input signal is locked with a generated (replica) signal and the oscillators are adjusted according to this lock, generally used in radio, telecommunication, computers and electronic applications.

A reference point precisely located on the ground and on two adjacent photos.

Photogrammetry is the science and technology used to obtain spatial measurement and other geometrically reliable derived from photographs.

The discrete units compose electromagnetic radiation

The observable natural environment as present in reality.

Picture symbols used to represent real-life phenomena (e.g. Swiss-Cross for hospital).

Permanent Identifier

The ability of certain mateials to generate an electric charge in response to mechanical stress.

Trial program/application to be released to a selected few to evaluate the program/application's function and capabilities.

A transmission beam.

Equipment for non-destructive testing/survey for buried utilities (e.g. pipes, cables).

Analysis of changes of flow in pipelines systems.

Rotation on Y-axis.

The smallest, addressable and controllable element on a digital raster image.

A particular location and/or position in space.

Where drawings are detail and true to scale.

Object as viewed on a horizontal plane.

Type of Cylindrical Projection where the equator is a standard line, latitudes and logitudes are represented as straight lines and parallel.

Coordinate system designated on a particular plane of reference.

Surveying of small area of Earth's surface, taken that Earth's surface is flat (i.e., on the horizontal plane).

Instrument for measuring area of a plane figure.

Maps that does not include terrain data, only showing horizontal features and phenomena on Earth's surface without topographic features.

Machines aiding in the process of construction.

Phase-Lock Loop

Software extensions that could work automatically in another software/program.

Line extended at vertical in the direction of gravity.

Spatial element containt a defined pair of (x,y) coordinate.

Set of data points in a particular coordinate system defined by X, Y, Z intended to represent the surface of a particular object/location.

To modify the brightness value of each pixel in an image data set independently.