GPS/INS Integration: From Modern Methods of Data Acquisition fo New Applications

Jan Skaloud
2004
Journal paper

This paper presents a new approach to GPS/INS data acquisition and synchronization for the most popular sensors adopted by the mapping industry for direct-georeferencing; the tactical-grade FOG/silicon-based inertial sensors and generic dual frequency GPS receivers. Contrary to most industry solutions, no dedicated timing boards or industrial PCs with real-time OS kernels are needed. The somewhat inconvenient SDLC communication and synchronization of the 400Hz inertial data is handled by a small interface that is connected to a conventional laptop via Ethernet. This PC performs data storage and/or loosely coupled integration with GPS data coming over RS232 serial link. The laptop can use Windows or other standard Operating Systems (OS) as varying processing latency is no longer critical. The same laptop can also handle voluminous (10 kHz) airborne laser scanning data coming over the same Ethernet port or data arriving from high resolution digital camera (fire-wire). Altogether this small-size, low-weight navigation system opens door to new and affordable mapping applications of high precision.

About this result

This page is automatically generated and may contain information that is not correct, complete, up-to-date, or relevant to your search query. The same applies to every other page on this website. Please make sure to verify the information with EPFL's official sources.

Jan Skaloud
2004
Journal paper

Abstract

Official source

https://infoscience.epfl.ch/record/33708?ln=en

About this result

Related concepts (5)

Ethernet

Ethernet (ˈiːθərnɛt ) is a family of wired computer networking technologies commonly used in local area networks (LAN), metropolitan area networks (MAN) and wide area networks (WAN). It was commercially introduced in 1980 and first standardized in 1983 as IEEE 802.3. Ethernet has since been refined to support higher bit rates, a greater number of nodes, and longer link distances, but retains much backward compatibility. Over time, Ethernet has largely replaced competing wired LAN technologies such as Token Ring, FDDI and ARCNET.

Operating system

An operating system (OS) is system software that manages computer hardware and software resources, and provides common services for computer programs. Time-sharing operating systems schedule tasks for efficient use of the system and may also include accounting software for cost allocation of processor time, mass storage, peripherals, and other resources.

Perceptual mapping

Perceptual mapping or market mapping is a diagrammatic technique used by asset marketers that attempts to visually display the perceptions of customers or potential customers. The positioning of a brand is influenced by customer perceptions rather than by those of businesses. For example, a business may feel it sells upmarket products of high quality, but if customers view the products as low quality, it is their views which will influence sales. Typically the position of a company's product, product line, or brand is displayed relative to their competition.