Ordlista

Nyckelbegrepp inom professionell mätning och geospatial teknik.

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Overlap

The area where two or more survey photographs, map sheets, or survey lines cover the same ground.

parcel boundary

The legally defined line that separates one parcel of land from another adjacent parcel.

pdop

Pdop om mät på precisionen av en GPS-positionsbestämmning baserad på satellitgeometrin.

Phase Shift

The displacement of a periodic signal in time or space relative to a reference point or another signal.

photogrammetry

The science and technology of obtaining reliable measurements and spatial information from photographs and digital images.

Photogrammetry Sparse Cloud

A preliminary three-dimensional point cloud generated during photogrammetric processing that contains relatively few calculated points, used as an intermediate step before dense cloud generation.

Photogrammetry Tie Point

A distinctive feature or landmark automatically or manually identified in overlapping photographs used to establish spatial relationships and coordinate transformations in photogrammetric surveys.

Pipeline Survey

A comprehensive surveying process that determines the precise location, alignment, and elevation of pipeline infrastructure for planning, construction, and maintenance purposes.

Pix4D

Pix4D is a software platform for processing aerial and drone imagery to create precise 2D maps, 3D models, and spatial data for surveying and mapping applications.

plat map

A detailed map showing the divisions of a piece of land into lots, blocks, and other subdivisions with measurements and boundaries.

plumb bob

A weight suspended by a string used to determine vertical alignment in surveying and construction.

plumb line

A surveying instrument consisting of a weight suspended by a string or wire used to establish a vertical line for measuring and alignment purposes.

Point Cloud

A large collection of three-dimensional data points captured through surveying instruments to represent the spatial characteristics of physical objects or terrain.

Point Cloud Classification

The process of assigning individual points in a three-dimensional point cloud to predetermined categories based on their geometric, spectral, or spatial characteristics.

point cloud registration

The process of aligning multiple point clouds acquired from different positions or times into a common coordinate system.

Point Cloud to BIM

The process of converting three-dimensional point cloud data acquired through laser scanning or photogrammetry into structured Building Information Models for design, construction, and facility management purposes.

pole

A vertical staff or rod used in surveying to mark points and measure distances on the ground.

PPK

Post-Processing Kinematic na isang high-precision GPS surveying method na gumagamit ng base station at rover para sa accurate positioning.

PPK Drone

A drone equipped with precise point positioning and kinematic positioning technology for high-accuracy geospatial surveying and mapping.

ppm

Ppm ay isang yunit ng pagsukat na kumakatawan sa bahagi bawat milyong bahagi, karaniwang ginagamit sa surveying upang ipahayag ang napakaliit na mga ratio o konsentrasyon.

PPP (Precise Point Positioning)

A GNSS surveying technique that uses corrections from a single receiver to achieve centimeter to decimeter-level positioning accuracy without a local reference station.

Precise Point Positioning

A GNSS surveying technique that uses precise satellite orbit and clock corrections to achieve centimeter-level positioning accuracy without ground-based reference stations.

Presizyon Doğruluğu

Ölçüm sonuçlarının gerçek değere ne kadar yakın olduğunu ve ölçümlerin ne kadar tekrarlanabilir olduğunu gösteren kalite göstergesidir.

prism constant

A fixed correction value that accounts for the horizontal distance between a prism's reflective surface and its mechanical center.

prism reflector

A surveying instrument consisting of a prism or system of prisms that reflects light to enable indirect distance and angle measurements in surveying operations.

Profil Memanjang

Representasi grafis dari permukaan tanah yang menunjukkan elevasi dan jarak horizontal sepanjang garis survei yang ditentukan.

Projekcija Karte

Matematički postupak pretvaranja trodimenzionalne površine Zemlje na dvodimenzionalnu ravninu karte.

QGIS

QGIS is a free and open-source geographic information system software used for creating, editing, visualizing, and analyzing geospatial data in surveying and mapping applications.

radio modem

A device that modulates and demodulates radio signals for wireless data transmission over telecommunications networks.

radome

A protective enclosure designed to shield radar antennas from environmental elements while allowing electromagnetic waves to pass through with minimal attenuation.

rail survey

A specialized surveying discipline focused on establishing precise horizontal and vertical measurements for railway construction, maintenance, and alignment verification.

random error

Unpredictable variations in measurements caused by uncontrollable factors that affect survey accuracy.

Range Accuracy

Range accuracy refers to the degree of closeness between measured distance values and their true values in surveying operations.

range finder

An instrument used in surveying to measure the distance between two points or from the instrument to a distant object.

rapid static

A GNSS surveying technique using static positioning with shorter observation periods than traditional static methods to determine precise coordinates.

Raster Data

A digital representation of spatial information composed of a grid of regularly spaced cells or pixels, each containing a value representing a geographic phenomenon.

raw data

Unprocessed information collected directly from surveying instruments and field observations before any analysis or transformation.

recap

A brief summary or review of the main points of a discussion, meeting, or event.

Redundancy

The inclusion of additional measurements or observations beyond the minimum required to determine a surveying solution, providing quality control and error detection.

reflective target

A marker used in surveying that reflects light back to its source for precise measurement and positioning.

reflectorless

A surveying technology that measures distances without requiring reflective prisms or targets at the measurement point.

Reflectorless Measurement

A surveying technique that measures distances and positions without requiring reflective targets or prisms at the measurement point.

registration

The formal process of recording property boundaries and ownership rights in official government records.

Remote Sensing

Remote sensing is the science of obtaining information about objects or areas from a distance, typically using satellites, aircraft, or drones equipped with specialized sensors.

Resection

A surveying method for determining the position of an unknown point by measuring angles to known reference points.

Revit Survey

A digital surveying methodology that integrates field measurement data with Building Information Modeling (BIM) software to create accurate architectural and structural documentation.

right of way

The legal right to pass through property owned by another, typically granted for public roads, utilities, or transportation corridors.

RISCAN PRO

RISCAN PRO is a comprehensive software suite for processing, analyzing, and managing 3D laser scanning data from terrestrial and mobile platforms.

rms

Rms ay isang sukatan ng paggalaw o pagbabago na ginagamit sa surveying at engineering upang masukat ang kalidad ng data.

RMSE

RMSE ay isang statistical measure na nagpapakita ng average magnitude ng errors sa pagitan ng predicted at actual values sa surveying measurements.

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