Mediaspace scheduled maintenance: Aug 25, 2026 07:00 - 12:00 AM. During this time, videos will be temporarily unavailable. Check status updates.

Lecture

Acquisition of Primary Data

Description

This lecture covers the methods of primary data acquisition, including positioning data and thematic data. It discusses astronomical, land, satellite, and Lodar measurements for positioning, and punctual and satellite imagery measurements for thematic data. For further exploration, the instructor recommends the course Geomatic Elements.

Official source

Related concepts (10)

Positioning system

A positioning system is a system for determining the position of an object in space. One of the most well-known and commonly used positioning systems is the Global Positioning System (GPS). Positioning system technologies exist ranging from worldwide coverage with meter accuracy to workspace coverage with sub-millimeter accuracy. Interplanetary-radio communication systems not only communicate with spacecraft, but they are also used to determine their position.

Data

In common usage and statistics, data (USˈdætə; UKˈdeɪtə) is a collection of discrete or continuous values that convey information, describing the quantity, quality, fact, statistics, other basic units of meaning, or simply sequences of symbols that may be further interpreted formally. A datum is an individual value in a collection of data. Data is usually organized into structures such as tables that provide additional context and meaning, and which may themselves be used as data in larger structures.

Indoor positioning system

An indoor positioning system (IPS) is a network of devices used to locate people or objects where GPS and other satellite technologies lack precision or fail entirely, such as inside multistory buildings, airports, alleys, parking garages, and underground locations. A large variety of techniques and devices are used to provide indoor positioning ranging from reconfigured devices already deployed such as smartphones, WiFi and Bluetooth antennas, digital cameras, and clocks; to purpose built installations with relays and beacons strategically placed throughout a defined space.

Global Positioning System

The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radio navigation system owned by the United States government and operated by the United States Space Force. It is one of the global navigation satellite systems (GNSS) that provides geolocation and time information to a GPS receiver anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites.

Geomatics

Geomatics is defined in the ISO/TC 211 series of standards as the "discipline concerned with the collection, distribution, storage, analysis, processing, presentation of geographic data or geographic information". Under another definition, it consists of products, services and tools involved in the collection, integration and management of geographic (geospatial) data. It is also known as geomatic(s) engineering (geodesy and geoinformatics engineering or geospatial engineering).

Related lectures (12)

Data Acquisition Methods MOOC: Geographical Information Systems 1

Reviews methods for acquiring primary data and suggests further exploration.

Acquisition de données primaires: Positioning and Thematic Data MOOC: Geographical Information Systems 1

Covers primary data acquisition methods in GIS, including positioning and thematic data techniques.

Acquisition of Primary Data MOOC: Geographical Information Systems 1

Covers primary data acquisition methods, GPS, positioning techniques, satellite imagery, and thematic data analysis.

Imbrication: Enveloppe and Structure Preparation

Explores the concept of imbrication in envelope structures and assembly processes.

Satellite Location: Reflection Surface Analysis Log in to Mediaspace to watch this video