GRB

Where parts of the projection are repeated (e.g., Homolosine Projection).

Overlay method to identify area that falls within the identified criteria (A AND B).

Opposite of Resection, it is the method of determining position of an unknown point by fixing its relative position from two or more known points.

Type of Attribute that ranks data according to an arbitrarily assigned starting point, which indicates distances (comparative values) between different classes.

A device counts intervals of time.

Closed network using Internet Protocol.

In linear algebra, if an n*n square matrix B can be expressed by an invertible n*n square matrix A with the following expression: AB=BA=In , then the matrix B is the inverse of A.

A transformation T: X → Y is invertible if there is a transformation S: Y → X satisfying ST = idX, and TS = idY.

Inverse functions of trigonometric functions. Type: 1) Arcsine (arcsin) 2) Arccosine (arccos) 3) Arctangent (arctan) 4) Arccotangent (arccot) 5) Arcsecant (arcsec) 6) Arccosecant (arccsc)

Initial Operational Capability

Issue of Date Clock

Issue Of Data Ephemeris

A layer of Earth's atmosphere with high concentration of ions and free electrons, it is able to reflect radio waves.

Errors in data caused when signals enter Ionosphere, Ionospheric Delay is main cause of error.

Change in speed of signal when it enters the Ionosphere, it is dependent on the frequency of the signal and the composition of the atmosphere (e.g. TEC).

Results in error in GPS positioning, where the atmosphere diffracts and refracts GPS signals.

Intelligence Reconnaissance Imagery System

Matrix with different number of elements in each row.

Class interval determination that calls attention to the characteristics of distribution, minize certain aspects of errors, and/or highlight certain elements of data range.

Intermediate Sight

Map showing data with continuous distribution depicting a particular phenomena (e.g., precipitation/rainfall).

Erosion map/chart.

Imaginary lines on a map with the same value of magnetic declination.

Rainfall distribution map/chart.

A line on a map that has a constant value.

Type of parallel projection often used in technical view, it is a pictorial view of 3D object, drawn by creating isoplanes, not a true 3D view.

Rise of land mase that were previously depressed by the weight of ice sheets during the last glacial period.

A hypothetical lossles antenna that uniformly radiates power in all directions, it is often used as a reference entenna for Antenna Gain.

Time stamp of navigation message.

International Terrestrial Reference System

A statistical distance measure of separabiity between two spectral classes.

Landing/dock for boats.

Noise affecting wave form.

Database operation that links multiple tables together by using a common key.

Specific points (nodes) where there is generally an intersection of pipes from various directions.

A certain portion in the EM spectrum, either in the Microwave domain (mainly used for radar and satellite communications) or Infra-red domain (mainly used for astronomical observations).

A statistical method for smoothing and condensing large amounts data that can contain noise and other inaccuracies.

A measure of the difference between the actual/chance agreement between provided reference data and an automated classifier/ random classifier.

Temperature unit, K=℃ (degree Celsius) +273.15

In image processing, kernel is a square matrix used for image convolution

Estimation of density through local interpolation method of associating known point with a kernal function, it is a non-parametric estimator.

A version of Relative Positioning, generally where only a single reciever is used, it is a method of determining position of the antenna whilst it is in motion.

A measurement of the average translational energy of the molecules comprising a body.

Keyhole Markup Language

Being equiped with the basic ideas and concepts related to the field of study, having the ability to learn and express basic ideas.

Branch of Data Mining, creation of knowledge from structured (e.g., database) and unstructured (e.g., documents) sources.

A method of interpolation for which the interpolated values are modeled by a Gaussian process governed by prior covariances.

Uses derivatives to help evaluate limits involving indeterminate forms.

1-2GHz range of the radio spectrum, used for satellite navigation, telecommunication, broadcasting and astronomy.

Frequency Band of 1575.42 MHz for carrying C/A Code signals, L1 Civilian (L1C) Code signals, P Code signals and M Code signals.