GRB

AJAX progress indicator
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  • b

  • Bar Sweeps
    Technique of determining or clearing of underwater obstructions using sweep rafts (or sweep barges) to ensure safety in navigation.
  • Barely Adequate
    It meets the intended subject learning outcomes only in some regards.
  • Barely Satisfactory
    It marginally meets the intended subject learning outcomes.
  • Bart Heuristic
    Set of Heuristic procedures to improve value of solution.
  • Base Contour
    Where contouring starts.
  • Base Station
    GPS reciever location where positional coordinates are precisely known (by previous survey data).
  • Baseline
    Line between two stations where observations are made simultaneously.
  • Basic Knowledge
    The simplest and lowest level of understanding, such as the concepts, components and functions.
  • Bathymetric Charts
    Map representation of submerged terrain.
  • Bayesian Classifier
    One of classification method which applies two weighting factors to the probability estimate and classify the image.
  • BDRF
    Bidirectional Reflectance Distribution Function
  • Be familiar with…
    Develop both an understanding and appreciation towards concepts, elements, theories and procedures within studies with the aide of technologies of the study area.
  • Beach Profile Survey
    Topographic and Bathymetric survey of beach and surrounding regions.
  • Beacon
    An active underwater marker that periodically sends a pulse of a particular frequency.
  • Bearings
    Direction for navigation. Type: 1) Grid Bearing 2) Magnetic Bearing 3) Whole-Circle Bearing 4) Quadrantal Bearing
  • Bed Profile
    Profile of seabed/riverbed produced through Direct/Indirect Hydrographic Methods.
  • Bedding
    Bottom layer of material to help with construction/foundation/building.
  • Bedrock
    Solid rock lying beneath surface (underneath soil).
  • Benchmark
    Points of known elevation and position, which has been established in the Ordnance Survey by Surveyors.
  • Bending Moment
    The material's to an external fource that causes the material to bend.
  • Between-Epoch Difference
    Difference of carrier phase measurement of a signal on one frequency from one satellite observed by receiver to be between two epochs.
  • Between-Receivers Difference
    Difference of carrier phase measurements from one satellite as measured by two different receivers.
  • Between-Satellites Difference
    Difference of carrier phase measurement between signals from two satellites on one frequencey observed simulaneously by one receiver.
  • Bezier Curve
    Mathematically derived (generated) curve.
  • Bi-level Scanned File
    Binary scanned file.
  • Bicubic Interpolation
    Extension of cubic interpolation, which uses data from all eight surrounding pixels (a total of 16 coefficients).
  • Bidirectional Reflectance Distribution Function
    A mathematical to descripe how reflectance varies for all combinations of illumination and viewing angles at a known wavelength.
  • Big Data
    Extremely large collection of data that is difficult (inefficient) to process (e.g. analyze, capture, search, share, store, visualize, transfer, etc…) using traditional means.
  • BIH
    Bureau International de L'Heure
  • Bilinear Interpolation
    Resampling method using a weighted average of the four nearest pixel from the focal pixel.
  • BIM
    Building Information Modelling
  • Binary Large Object
    Collection of Binary data stored as a single entity on database, can be an image, audio or multimedia objects.
  • Binary Mask
    Binary mask segments an image into two classes in order to apply additional processing into each class seperately.
  • Binary Models
    GIS model that uses logical expression to select spatial features, with binary outputes (TRUE for a match, FALSE for no match).
  • Binary Offset Carrier Modulation
    Its purpose is to reduce interference with BPSK modulation, it is a sub-carrier modulation where a signal is multiplied by a rectangular sub-carrier frequency.
  • Binary Phase Shift Keying
    Modulation scheme, technique used to create Navigation Message, P Code, and C/A Code consisting of 1 and 0 imprinted onto carrier wave without altering amplitude.
  • Binary Trees
    Data structure type that takes the form a a tree where each node has not more than two children.
  • Binomial Distribution
    Frequency of distribution where possible number of successful outcome is based on the same probability of success.
  • Biophysical Modelling
    Established to relate quantitatively the data collectd by remote sensing technology to biophysical features and phenomena measured ont the surface of the earth.
  • Bistatic Antenna
    Where reciever and transmitter of signals are separated by a distance comparable to the target's distance.
  • Bit
    A Unit of Information, either 1 or 0 (binary system).
  • Bitmap
    Images (printed or digital display) made up of a series of dots.
  • Bivariate Choropleth Map
    A variation of Choropleth Map, which shows two variables (phenomena) simultaneously to allow for graphical illustration of spatial relationship between the variables.
  • Blackbody
    A hypothetical and ideal radiator which is able to totally absorb and reemits all enery incident upon it.
  • BLOB
    Binary Large Object
  • Block
    Comprised by multiple strips captured by successive flights
  • Block Adjustment
    See description on Triangulation.
  • Block Coding
    Encoding of data in blocks, extension of Run-Length encoding.
  • Block I, II, IIA, IIF, IIR-M, IIR Satellites
    Classification of GPS satellite generation.
  • Block Kriging
    Method for establishing variance estimates and smoothing interpolated results.