David GNSS Survey Receivers

David GNSS Survey Receivers (read more)

2018-05-25 09:52:05

Richard Groom summarises some of the interesting papers from the FIG Congress focussing on GNSS, Hydrography, 3D Cadastre and mapping. GNSS – Detecting Cycle Slips Roberts and Hancock (TS03E) presented a paper on GNSS observables in a multi-constellation and multi-frequency world. The paper starts with a useful summary of how the systems have developed. Specifically, they look at the range residual and the ionospheric residual – both of which can be used to detect cycle slips. The range residual is the difference between the range calculated using pseudorange and the range calculated from the carrier phase on a specific frequency... (read more)

2018-09-05 04:24:13

Hemisphere GNSS Announces Rugged Atlas-capable UAV GNSS Antenna

Hemisphere GNSS has announced the multi-GNSS, multi-frequency 4-helix HA32 UAV antenna. The HA32 is a high-performance antenna that supports GPS, GLONASS, Galileo, BeiDou, Hemisphere’s own Atlas L-band correction service, and was designed specifically for UAVs, GIS, surveying, RTK, and other applications requiring high-precision positioning and navigation. The HA32 is built on an innovative and proprietary 4-helix antenna technology that provides superior filtering and anti-jamming performance with LNA features such as low noise figure of 2.0dB and up to 30dB gain. Suitable for most outdoor and harsh operating environments, the HA32 antenna is sealed in a durable and ruggedized IP67-rated enclosure for protection against... (read more)

2018-05-09 12:57:39

New Book: ‘GNSS Survey & Engineering’

Geomares Education introduces a new book, called ‘GNSS Survey & Engineering’, written by Huibert-Jan Lekkerkerk. 'GNSS Survey & Engineering' is aimed at providing the everyday professional GPS user with enough background information for the understanding and correct operation of satellite navigation equipment in general and particularly GPS. The new book is based on the lectures the author has written for the Skilltrade course in hydrographic surveying as well as a series of articles on satellite navigation systems. Today, GPS is almost synonymous with simple navigation and positioning in nearly all sectors. There are many brands and models to choose from... (read more)

2017-01-25 02:53:49

Trimble Announces Forensics GNSS Solution

Trimble has announced the launch of the Trimble Forensics GNSS solution. The solution combines the Trimble T10 tablet or TDC100 handheld with the Trimble Forensics Capture software and the Trimble R4sLE GNSS receiver. The solution enhances forensics fieldwork by improving efficiency and broadening the range of data collection technologies available. The software supports GNSS-based workflows and works with any Trimble R-series receivers. Options for data collection now include GNSS, 3D scanners, total stations and unmanned aerial systems. Key features include: Forensics Capture field software, designed with the help of law enforcement, uses industry terminology and Wizard-based workflows, making it easy... (read more)

2018-11-08 10:30:37

Trimble Introduces Next-generation GNSS Reference Receiver

Trimble has introduced its next-generation global navigation satellite system (GNSS) reference receiver for real-time network (RTN) applications: the Trimble Alloy GNSS reference receiver. Setting a new industry standard with 672 channels, the continuously operating reference station (CORS) receiver provides users and operators with access to multiple constellations and signals, supplying robust and reliable reference data. With an IP68 rating for protection against dust and moisture, the Trimble Alloy performs even in the most rugged environments to meet the demands of professionals from the Earth science, surveying, construction, mapping and agricultural industries. Delivering high-accuracy GNSS data to improve RTN performance and reliability,... (read more)

2018-02-14 11:21:35

GNSS and the Many Sources of Information

The theme of this issue of Geomatics World is GNSS. Geodesy was once very much in the domain of surveyors but today the use of satellite data for positioning is ubiquitous and with 95% of the population owning a smart phone, most of them will be using GNSS, even if they don't know it, and it is essential for autonomous vehicles. As well as its use by the general public, GNSS is an essential tool for geospatial surveyors as demonstrated in the articles on highway construction and canal maintenance. GNSS is also necessary for operating drones and mobile mapping systems.... (read more)

2018-09-17 03:49:55

OS Net - Preparations for Future GNSS

Ordnance Survey (OS) has just updated its geodetic infrastructure. Mark Greaves, Lead Consultant at Geodesy, describes these developments and takes a look at shorter and longer-term geodetic issues for surveyors. OS Net is Ordnance Survey's national network of over 110 permanent, geodetic quality, GNSS stations. GNSS observation data is streamed in real-time to a central hub and access to the national standard realisation of ETRS89 is enabled through the following services: Real-time GNSS correction services available to customers of OS Net commercial partners. Real-time GNSS correction services for OS surveyors. High rate (i.e. 1Hz) RINEX data for use in commercial... (read more)

2018-09-18 12:01:49

Topcon Introduces HiPer VR GNSS Receiver

The HiPer VR is compact, light and packed with the most advanced GNSS technology in a design built to withstand the harshest field environments. Using Topcon’s advanced GNSS chipset with Universal Tracking Channels technology, the HiPer VR tracks every satellite signal – now and into the future. All signals, all satellites and all constellations - in a compact, rugged design, with an integrated IMU and eCompass. The HiPer VR is a complete solution and versatile in many ways. It can be used for static or kinematic GNSS post-processed surveys, as a network RTK rover with the FC-5000's internal 4G/LTE cellular... (read more)

2018-12-04 10:34:07

Trimble SiteVision Prototype Offers Accurate Outdoor AR Using GNSS

Trimble’s Mixed Reality Program head Aviad Almagor has announced a prototype that could help solve the problem of outdoor positioning for augmented reality. SiteVision is designed to be used outdoors for certain construction design and mining applications so it doesn’t require the complex locating technologies we use when we’re denied access to positioning satellites. Instead, it implements Trimble’s Catalyst GNSS solution, which uses software and a powerful antenna to locate a mobile device to within a few centimetres. SiteVision combines Catalyst with a Lenovo Phab2 Pro. It uses the 3D capture technology to track the viewpoint and orientation of the AR device–information that is... (read more)

2017-05-26 01:00:59